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Finding the Fourth Proportional to 732.32, 1,095.20 and 547.68

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Solution

The fourth proportional to 732.32, 1,095.20 and 547.68 is: 819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.32 : 1,095.20 = 547.68 : x
  2. Step 2: Convert to fraction form
    732.32/1,095.20 = 547.68/x
  3. Step 3: Cross multiply
    732.32x = 1,095.20 × 547.68
  4. Step 4: Simplify right side
    732.32x = 599,819.14
  5. Step 5: Solve for x
    x = 599,819.14/732.32
  6. Step 6: Final answer
    x = 819.07

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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.