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Finding the Fourth Proportional to 1,182.88, 1,773.80 and 489.52

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Solution

The fourth proportional to 1,182.88, 1,773.80 and 489.52 is: 734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.88 : 1,773.80 = 489.52 : x
  2. Step 2: Convert to fraction form
    1,182.88/1,773.80 = 489.52/x
  3. Step 3: Cross multiply
    1,182.88x = 1,773.80 × 489.52
  4. Step 4: Simplify right side
    1,182.88x = 868,310.58
  5. Step 5: Solve for x
    x = 868,310.58/1,182.88
  6. Step 6: Final answer
    x = 734.06

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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.