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Finding the Third Proportional to 366,980 and 516,790

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Solution

The third proportional to 366,980 and 516,790 is: 727,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980 : 516,790 = 516,790 : x
  2. Step 2: Convert to fraction form
    366,980/516,790 = 516,790/x
  3. Step 3: Cross multiply
    366,980x = 516,790 × 516,790
  4. Step 4: Simplify right side
    366,980x = 267,071,904,100
  5. Step 5: Solve for x
    x = 267,071,904,100/366,980
  6. Step 6: Final answer
    x = 727,756.02

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.