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Finding the Fourth Proportional to 530.47, 732.76 and 442.24

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Solution

The fourth proportional to 530.47, 732.76 and 442.24 is: 610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.47 : 732.76 = 442.24 : x
  2. Step 2: Convert to fraction form
    530.47/732.76 = 442.24/x
  3. Step 3: Cross multiply
    530.47x = 732.76 × 442.24
  4. Step 4: Simplify right side
    530.47x = 324,053.57
  5. Step 5: Solve for x
    x = 324,053.57/530.47
  6. Step 6: Final answer
    x = 610.88

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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.