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Finding the Third Proportional to 451,597 and 664,920

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Solution

The third proportional to 451,597 and 664,920 is: 979,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,597 : 664,920 = 664,920 : x
  2. Step 2: Convert to fraction form
    451,597/664,920 = 664,920/x
  3. Step 3: Cross multiply
    451,597x = 664,920 × 664,920
  4. Step 4: Simplify right side
    451,597x = 442,118,606,400
  5. Step 5: Solve for x
    x = 442,118,606,400/451,597
  6. Step 6: Final answer
    x = 979,011.39

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.