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Finding the Third Proportional to 418,799 and 667,047

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Solution

The third proportional to 418,799 and 667,047 is: 1,062,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,799 : 667,047 = 667,047 : x
  2. Step 2: Convert to fraction form
    418,799/667,047 = 667,047/x
  3. Step 3: Cross multiply
    418,799x = 667,047 × 667,047
  4. Step 4: Simplify right side
    418,799x = 444,951,700,209
  5. Step 5: Solve for x
    x = 444,951,700,209/418,799
  6. Step 6: Final answer
    x = 1,062,446.90

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.