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Finding the Fourth Proportional to 574.76, 792.87 and 353.58

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Solution

The fourth proportional to 574.76, 792.87 and 353.58 is: 487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.76 : 792.87 = 353.58 : x
  2. Step 2: Convert to fraction form
    574.76/792.87 = 353.58/x
  3. Step 3: Cross multiply
    574.76x = 792.87 × 353.58
  4. Step 4: Simplify right side
    574.76x = 280,342.97
  5. Step 5: Solve for x
    x = 280,342.97/574.76
  6. Step 6: Final answer
    x = 487.76

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Find fourth proportional to 287.38, 396.44 and 176.79
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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.