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Finding the Fourth Proportional to 574.52, 792.78 and 353.52

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Solution

The fourth proportional to 574.52, 792.78 and 353.52 is: 487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.52 : 792.78 = 353.52 : x
  2. Step 2: Convert to fraction form
    574.52/792.78 = 353.52/x
  3. Step 3: Cross multiply
    574.52x = 792.78 × 353.52
  4. Step 4: Simplify right side
    574.52x = 280,263.59
  5. Step 5: Solve for x
    x = 280,263.59/574.52
  6. Step 6: Final answer
    x = 487.82

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