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Finding the Fourth Proportional to 1,227.94, 1,841.92 and 447.46

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Solution

The fourth proportional to 1,227.94, 1,841.92 and 447.46 is: 671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.94 : 1,841.92 = 447.46 : x
  2. Step 2: Convert to fraction form
    1,227.94/1,841.92 = 447.46/x
  3. Step 3: Cross multiply
    1,227.94x = 1,841.92 × 447.46
  4. Step 4: Simplify right side
    1,227.94x = 824,179.80
  5. Step 5: Solve for x
    x = 824,179.80/1,227.94
  6. Step 6: Final answer
    x = 671.19

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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.