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Finding the Fourth Proportional to 516.60, 773.82 and 461.97

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Solution

The fourth proportional to 516.60, 773.82 and 461.97 is: 691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.60 : 773.82 = 461.97 : x
  2. Step 2: Convert to fraction form
    516.60/773.82 = 461.97/x
  3. Step 3: Cross multiply
    516.60x = 773.82 × 461.97
  4. Step 4: Simplify right side
    516.60x = 357,481.63
  5. Step 5: Solve for x
    x = 357,481.63/516.60
  6. Step 6: Final answer
    x = 691.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.