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Finding the Third Proportional to 331,371 and 715,698

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Solution

The third proportional to 331,371 and 715,698 is: 1,545,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,371 : 715,698 = 715,698 : x
  2. Step 2: Convert to fraction form
    331,371/715,698 = 715,698/x
  3. Step 3: Cross multiply
    331,371x = 715,698 × 715,698
  4. Step 4: Simplify right side
    331,371x = 512,223,627,204
  5. Step 5: Solve for x
    x = 512,223,627,204/331,371
  6. Step 6: Final answer
    x = 1,545,770.83

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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.