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Finding the Fourth Proportional to 1,044.31, 1,565.07 and 549.70

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Solution

The fourth proportional to 1,044.31, 1,565.07 and 549.70 is: 823.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.31 : 1,565.07 = 549.70 : x
  2. Step 2: Convert to fraction form
    1,044.31/1,565.07 = 549.70/x
  3. Step 3: Cross multiply
    1,044.31x = 1,565.07 × 549.70
  4. Step 4: Simplify right side
    1,044.31x = 860,318.98
  5. Step 5: Solve for x
    x = 860,318.98/1,044.31
  6. Step 6: Final answer
    x = 823.82

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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.