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Finding the Fourth Proportional to 1,229.58, 1,844.51 and 449.82

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Solution

The fourth proportional to 1,229.58, 1,844.51 and 449.82 is: 674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.58 : 1,844.51 = 449.82 : x
  2. Step 2: Convert to fraction form
    1,229.58/1,844.51 = 449.82/x
  3. Step 3: Cross multiply
    1,229.58x = 1,844.51 × 449.82
  4. Step 4: Simplify right side
    1,229.58x = 829,695.24
  5. Step 5: Solve for x
    x = 829,695.24/1,229.58
  6. Step 6: Final answer
    x = 674.78

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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.