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Finding the Fourth Proportional to 757.10, 1,044.14 and 632.42

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Solution

The fourth proportional to 757.10, 1,044.14 and 632.42 is: 872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.10 : 1,044.14 = 632.42 : x
  2. Step 2: Convert to fraction form
    757.10/1,044.14 = 632.42/x
  3. Step 3: Cross multiply
    757.10x = 1,044.14 × 632.42
  4. Step 4: Simplify right side
    757.10x = 660,335.02
  5. Step 5: Solve for x
    x = 660,335.02/757.10
  6. Step 6: Final answer
    x = 872.19

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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.