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Finding the Fourth Proportional to 552.56, 832.12 and 481.28

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Solution

The fourth proportional to 552.56, 832.12 and 481.28 is: 724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.56 : 832.12 = 481.28 : x
  2. Step 2: Convert to fraction form
    552.56/832.12 = 481.28/x
  3. Step 3: Cross multiply
    552.56x = 832.12 × 481.28
  4. Step 4: Simplify right side
    552.56x = 400,482.71
  5. Step 5: Solve for x
    x = 400,482.71/552.56
  6. Step 6: Final answer
    x = 724.78

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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.