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Finding the Third Proportional to 331,330 and 715,554

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Solution

The third proportional to 331,330 and 715,554 is: 1,545,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,330 : 715,554 = 715,554 : x
  2. Step 2: Convert to fraction form
    331,330/715,554 = 715,554/x
  3. Step 3: Cross multiply
    331,330x = 715,554 × 715,554
  4. Step 4: Simplify right side
    331,330x = 512,017,526,916
  5. Step 5: Solve for x
    x = 512,017,526,916/331,330
  6. Step 6: Final answer
    x = 1,545,340.07

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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.