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Finding the Fourth Proportional to 479.66, 658.08 and 456.44

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Solution

The fourth proportional to 479.66, 658.08 and 456.44 is: 626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.66 : 658.08 = 456.44 : x
  2. Step 2: Convert to fraction form
    479.66/658.08 = 456.44/x
  3. Step 3: Cross multiply
    479.66x = 658.08 × 456.44
  4. Step 4: Simplify right side
    479.66x = 300,370.74
  5. Step 5: Solve for x
    x = 300,370.74/479.66
  6. Step 6: Final answer
    x = 626.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.