Home / 418,715-908,359

Finding the Third Proportional to 418,715 and 908,359

Calculator

Solution

The third proportional to 418,715 and 908,359 is: 1,970,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,715 : 908,359 = 908,359 : x
  2. Step 2: Convert to fraction form
    418,715/908,359 = 908,359/x
  3. Step 3: Cross multiply
    418,715x = 908,359 × 908,359
  4. Step 4: Simplify right side
    418,715x = 825,116,072,881
  5. Step 5: Solve for x
    x = 825,116,072,881/418,715
  6. Step 6: Final answer
    x = 1,970,591.15

Related Problems

Find third proportional to 209,357.50 and 454,179.50
Half scale
Find third proportional to 837,430 and 1,816,718
Double scale
Find third proportional to 418,717 and 908,363
Similar ratio
Find third proportional to 628,072.50 and 1,362,538.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.