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Finding the Fourth Proportional to 956.52, 1,320.24 and 625.86

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Solution

The fourth proportional to 956.52, 1,320.24 and 625.86 is: 863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.52 : 1,320.24 = 625.86 : x
  2. Step 2: Convert to fraction form
    956.52/1,320.24 = 625.86/x
  3. Step 3: Cross multiply
    956.52x = 1,320.24 × 625.86
  4. Step 4: Simplify right side
    956.52x = 826,285.41
  5. Step 5: Solve for x
    x = 826,285.41/956.52
  6. Step 6: Final answer
    x = 863.85

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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.