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Finding the Fourth Proportional to 662.71, 992.00 and 516.88

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Solution

The fourth proportional to 662.71, 992.00 and 516.88 is: 773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.71 : 992.00 = 516.88 : x
  2. Step 2: Convert to fraction form
    662.71/992.00 = 516.88/x
  3. Step 3: Cross multiply
    662.71x = 992.00 × 516.88
  4. Step 4: Simplify right side
    662.71x = 512,744.58
  5. Step 5: Solve for x
    x = 512,744.58/662.71
  6. Step 6: Final answer
    x = 773.71

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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.