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Finding the Third Proportional to 331,373 and 715,702

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Solution

The third proportional to 331,373 and 715,702 is: 1,545,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,373 : 715,702 = 715,702 : x
  2. Step 2: Convert to fraction form
    331,373/715,702 = 715,702/x
  3. Step 3: Cross multiply
    331,373x = 715,702 × 715,702
  4. Step 4: Simplify right side
    331,373x = 512,229,352,804
  5. Step 5: Solve for x
    x = 512,229,352,804/331,373
  6. Step 6: Final answer
    x = 1,545,778.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.