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Finding the Fourth Proportional to 757.04, 1,044.68 and 481.52

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Solution

The fourth proportional to 757.04, 1,044.68 and 481.52 is: 664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.04 : 1,044.68 = 481.52 : x
  2. Step 2: Convert to fraction form
    757.04/1,044.68 = 481.52/x
  3. Step 3: Cross multiply
    757.04x = 1,044.68 × 481.52
  4. Step 4: Simplify right side
    757.04x = 503,034.31
  5. Step 5: Solve for x
    x = 503,034.31/757.04
  6. Step 6: Final answer
    x = 664.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.