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Finding the Fourth Proportional to 532.67, 735.04 and 422.40

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Solution

The fourth proportional to 532.67, 735.04 and 422.40 is: 582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.67 : 735.04 = 422.40 : x
  2. Step 2: Convert to fraction form
    532.67/735.04 = 422.40/x
  3. Step 3: Cross multiply
    532.67x = 735.04 × 422.40
  4. Step 4: Simplify right side
    532.67x = 310,480.90
  5. Step 5: Solve for x
    x = 310,480.90/532.67
  6. Step 6: Final answer
    x = 582.88

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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.