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Finding the Fourth Proportional to 552.60, 766.72 and 547.89

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Solution

The fourth proportional to 552.60, 766.72 and 547.89 is: 760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.60 : 766.72 = 547.89 : x
  2. Step 2: Convert to fraction form
    552.60/766.72 = 547.89/x
  3. Step 3: Cross multiply
    552.60x = 766.72 × 547.89
  4. Step 4: Simplify right side
    552.60x = 420,078.22
  5. Step 5: Solve for x
    x = 420,078.22/552.60
  6. Step 6: Final answer
    x = 760.18

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.