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Finding the Fourth Proportional to 691.44, 1,037.84 and 562.92

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Solution

The fourth proportional to 691.44, 1,037.84 and 562.92 is: 844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.44 : 1,037.84 = 562.92 : x
  2. Step 2: Convert to fraction form
    691.44/1,037.84 = 562.92/x
  3. Step 3: Cross multiply
    691.44x = 1,037.84 × 562.92
  4. Step 4: Simplify right side
    691.44x = 584,220.89
  5. Step 5: Solve for x
    x = 584,220.89/691.44
  6. Step 6: Final answer
    x = 844.93

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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.