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Finding the Third Proportional to 418,332 and 628,452

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Solution

The third proportional to 418,332 and 628,452 is: 944,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,332 : 628,452 = 628,452 : x
  2. Step 2: Convert to fraction form
    418,332/628,452 = 628,452/x
  3. Step 3: Cross multiply
    418,332x = 628,452 × 628,452
  4. Step 4: Simplify right side
    418,332x = 394,951,916,304
  5. Step 5: Solve for x
    x = 394,951,916,304/418,332
  6. Step 6: Final answer
    x = 944,111.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.