Home / 1,229.75-1,844.79-449.60

Finding the Fourth Proportional to 1,229.75, 1,844.79 and 449.60

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Solution

The fourth proportional to 1,229.75, 1,844.79 and 449.60 is: 674.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.75 : 1,844.79 = 449.60 : x
  2. Step 2: Convert to fraction form
    1,229.75/1,844.79 = 449.60/x
  3. Step 3: Cross multiply
    1,229.75x = 1,844.79 × 449.60
  4. Step 4: Simplify right side
    1,229.75x = 829,422.20
  5. Step 5: Solve for x
    x = 829,422.20/1,229.75
  6. Step 6: Final answer
    x = 674.47

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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.