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Finding the Third Proportional to 366,945 and 516,739

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Solution

The third proportional to 366,945 and 516,739 is: 727,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,945 : 516,739 = 516,739 : x
  2. Step 2: Convert to fraction form
    366,945/516,739 = 516,739/x
  3. Step 3: Cross multiply
    366,945x = 516,739 × 516,739
  4. Step 4: Simplify right side
    366,945x = 267,019,194,121
  5. Step 5: Solve for x
    x = 267,019,194,121/366,945
  6. Step 6: Final answer
    x = 727,681.79

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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.