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Finding the Fourth Proportional to 572.06, 861.52 and 481.34

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Solution

The fourth proportional to 572.06, 861.52 and 481.34 is: 724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.06 : 861.52 = 481.34 : x
  2. Step 2: Convert to fraction form
    572.06/861.52 = 481.34/x
  3. Step 3: Cross multiply
    572.06x = 861.52 × 481.34
  4. Step 4: Simplify right side
    572.06x = 414,684.04
  5. Step 5: Solve for x
    x = 414,684.04/572.06
  6. Step 6: Final answer
    x = 724.90

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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.