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Finding the Fourth Proportional to 564.53, 847.08 and 487.98

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Solution

The fourth proportional to 564.53, 847.08 and 487.98 is: 732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.53 : 847.08 = 487.98 : x
  2. Step 2: Convert to fraction form
    564.53/847.08 = 487.98/x
  3. Step 3: Cross multiply
    564.53x = 847.08 × 487.98
  4. Step 4: Simplify right side
    564.53x = 413,358.10
  5. Step 5: Solve for x
    x = 413,358.10/564.53
  6. Step 6: Final answer
    x = 732.22

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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.