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Finding the Fourth Proportional to 716.57, 988.57 and 530.52

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Solution

The fourth proportional to 716.57, 988.57 and 530.52 is: 731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.57 : 988.57 = 530.52 : x
  2. Step 2: Convert to fraction form
    716.57/988.57 = 530.52/x
  3. Step 3: Cross multiply
    716.57x = 988.57 × 530.52
  4. Step 4: Simplify right side
    716.57x = 524,456.16
  5. Step 5: Solve for x
    x = 524,456.16/716.57
  6. Step 6: Final answer
    x = 731.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.