Alaska is about 356 times bigger than French Polynesia.

French Polynesia is approximately 4,167 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 35,450% larger than French Polynesia. Meanwhile, the population of French Polynesia is ~299,356 people (410,875 more people live in Alaska).
Tip: This to-scale comparison of French Polynesia vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.