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Finding the Fourth Proportional to 494.72, 742.44 and 477.44

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Solution

The fourth proportional to 494.72, 742.44 and 477.44 is: 716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.72 : 742.44 = 477.44 : x
  2. Step 2: Convert to fraction form
    494.72/742.44 = 477.44/x
  3. Step 3: Cross multiply
    494.72x = 742.44 × 477.44
  4. Step 4: Simplify right side
    494.72x = 354,470.55
  5. Step 5: Solve for x
    x = 354,470.55/494.72
  6. Step 6: Final answer
    x = 716.51

Related Problems

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Double scale
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Similar ratio
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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.