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Finding the Fourth Proportional to 730.47, 1,095.51 and 499.32

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Solution

The fourth proportional to 730.47, 1,095.51 and 499.32 is: 748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.47 : 1,095.51 = 499.32 : x
  2. Step 2: Convert to fraction form
    730.47/1,095.51 = 499.32/x
  3. Step 3: Cross multiply
    730.47x = 1,095.51 × 499.32
  4. Step 4: Simplify right side
    730.47x = 547,010.05
  5. Step 5: Solve for x
    x = 547,010.05/730.47
  6. Step 6: Final answer
    x = 748.85

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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.