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Finding the Fourth Proportional to 695.28, 1,044.84 and 353.52

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Solution

The fourth proportional to 695.28, 1,044.84 and 353.52 is: 531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.28 : 1,044.84 = 353.52 : x
  2. Step 2: Convert to fraction form
    695.28/1,044.84 = 353.52/x
  3. Step 3: Cross multiply
    695.28x = 1,044.84 × 353.52
  4. Step 4: Simplify right side
    695.28x = 369,371.84
  5. Step 5: Solve for x
    x = 369,371.84/695.28
  6. Step 6: Final answer
    x = 531.26

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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.