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Finding the Fourth Proportional to 587.68, 884.92 and 516.40

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Solution

The fourth proportional to 587.68, 884.92 and 516.40 is: 777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.68 : 884.92 = 516.40 : x
  2. Step 2: Convert to fraction form
    587.68/884.92 = 516.40/x
  3. Step 3: Cross multiply
    587.68x = 884.92 × 516.40
  4. Step 4: Simplify right side
    587.68x = 456,972.69
  5. Step 5: Solve for x
    x = 456,972.69/587.68
  6. Step 6: Final answer
    x = 777.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.