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Finding the Fourth Proportional to 552.60, 747.45 and 552.60

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Solution

The fourth proportional to 552.60, 747.45 and 552.60 is: 747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.60 : 747.45 = 552.60 : x
  2. Step 2: Convert to fraction form
    552.60/747.45 = 552.60/x
  3. Step 3: Cross multiply
    552.60x = 747.45 × 552.60
  4. Step 4: Simplify right side
    552.60x = 413,040.87
  5. Step 5: Solve for x
    x = 413,040.87/552.60
  6. Step 6: Final answer
    x = 747.45

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.