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Finding the Fourth Proportional to 576.71, 868.48 and 480.12

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Solution

The fourth proportional to 576.71, 868.48 and 480.12 is: 723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.71 : 868.48 = 480.12 : x
  2. Step 2: Convert to fraction form
    576.71/868.48 = 480.12/x
  3. Step 3: Cross multiply
    576.71x = 868.48 × 480.12
  4. Step 4: Simplify right side
    576.71x = 416,974.62
  5. Step 5: Solve for x
    x = 416,974.62/576.71
  6. Step 6: Final answer
    x = 723.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.