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Finding the Fourth Proportional to 494.88, 680.90 and 482.73

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Solution

The fourth proportional to 494.88, 680.90 and 482.73 is: 664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.88 : 680.90 = 482.73 : x
  2. Step 2: Convert to fraction form
    494.88/680.90 = 482.73/x
  3. Step 3: Cross multiply
    494.88x = 680.90 × 482.73
  4. Step 4: Simplify right side
    494.88x = 328,685.04
  5. Step 5: Solve for x
    x = 328,685.04/494.88
  6. Step 6: Final answer
    x = 664.18

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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.