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Finding the Fourth Proportional to 484.80, 726.52 and 475.08

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Solution

The fourth proportional to 484.80, 726.52 and 475.08 is: 711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.80 : 726.52 = 475.08 : x
  2. Step 2: Convert to fraction form
    484.80/726.52 = 475.08/x
  3. Step 3: Cross multiply
    484.80x = 726.52 × 475.08
  4. Step 4: Simplify right side
    484.80x = 345,155.12
  5. Step 5: Solve for x
    x = 345,155.12/484.80
  6. Step 6: Final answer
    x = 711.95

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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.