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Finding the Fourth Proportional to 474.76, 658.51 and 454.60

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Solution

The fourth proportional to 474.76, 658.51 and 454.60 is: 630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.76 : 658.51 = 454.60 : x
  2. Step 2: Convert to fraction form
    474.76/658.51 = 454.60/x
  3. Step 3: Cross multiply
    474.76x = 658.51 × 454.60
  4. Step 4: Simplify right side
    474.76x = 299,358.65
  5. Step 5: Solve for x
    x = 299,358.65/474.76
  6. Step 6: Final answer
    x = 630.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.