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Finding the Fourth Proportional to 531.24, 792.69 and 476.72

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Solution

The fourth proportional to 531.24, 792.69 and 476.72 is: 711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.24 : 792.69 = 476.72 : x
  2. Step 2: Convert to fraction form
    531.24/792.69 = 476.72/x
  3. Step 3: Cross multiply
    531.24x = 792.69 × 476.72
  4. Step 4: Simplify right side
    531.24x = 377,891.18
  5. Step 5: Solve for x
    x = 377,891.18/531.24
  6. Step 6: Final answer
    x = 711.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.