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Finding the Third Proportional to 513,702 and 681,628

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Solution

The third proportional to 513,702 and 681,628 is: 904,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,702 : 681,628 = 681,628 : x
  2. Step 2: Convert to fraction form
    513,702/681,628 = 681,628/x
  3. Step 3: Cross multiply
    513,702x = 681,628 × 681,628
  4. Step 4: Simplify right side
    513,702x = 464,616,730,384
  5. Step 5: Solve for x
    x = 464,616,730,384/513,702
  6. Step 6: Final answer
    x = 904,447.97

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.