Unfortunately its not the simple.
en.wikipedia.org
The apportionment method currently used is the method of equal proportions, which minimizes the
percentage differences in the number of people per representative among the different states.<a href="
United States congressional apportionment - Wikipedia"><span>[</span>43<span>]</span></a> The resulting apportionment is optimal in the sense that any additional transfer of a seat from one state to another would result in larger percentage differences.<a href="
United States congressional apportionment - Wikipedia"><span>[</span>44<span>]</span></a>
In this method, as a first step, each of the 50 states is given its one guaranteed seat in the House of Representatives, leaving 385 seats to assign. The remaining seats are allocated one at a time, to the state with the highest priority number. Thus, the 51st seat would go to the most populous state (currently California). The priority number is determined by the ratio of the state population to the
geometric mean of the number of seats it currently holds in the assignment process,
n (initially 1), and the number of seats it
would hold
if the seat were assigned to it,
n+1. Symbolically, the priority number
An is
An=Pn(n+1)
where
P is the population of the state, and
n is the number of seats it currently holds before the possible allocation of the next seat. An equivalent, recursive definition is
Am+1=mm+2 Am
An=n−1n+1 An−1
where
n is
still the number of seats the state has
before allocation of the next (in other words, for the
mth allocation,
n =
m-1).
Consider the reapportionment following the 2010 U.S. census: beginning with all states initially being allocated one seat, the largest value of
A1 corresponds to the largest state, California, which is allocated seat 51. After being allocated its 2nd seat, its priority value decreases to its
A2 value, which is reordered to a position back in line. The 52nd seat goes to Texas, the 2nd largest state, because its
A1 priority value is larger than the
An of any other state. However, the 53rd seat goes back to California because its
A2 priority value is larger than the
An of any other state. The 54th seat goes to New York because its
A1 priority value is larger than the
An of any other state at this point. This process continues until all remaining seats are assigned. Each time a state is assigned a seat,
n is incremented by 1, causing its priority value to be reduced and reordered among the states, whereupon another state normally rises to the top of the list.