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Finding the Fourth Proportional to 552.60, 827.80 and 484.20

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Solution

The fourth proportional to 552.60, 827.80 and 484.20 is: 725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.60 : 827.80 = 484.20 : x
  2. Step 2: Convert to fraction form
    552.60/827.80 = 484.20/x
  3. Step 3: Cross multiply
    552.60x = 827.80 × 484.20
  4. Step 4: Simplify right side
    552.60x = 400,820.76
  5. Step 5: Solve for x
    x = 400,820.76/552.60
  6. Step 6: Final answer
    x = 725.34

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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.