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Finding the Fourth Proportional to 898.82, 1,348.49 and 379.04

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Solution

The fourth proportional to 898.82, 1,348.49 and 379.04 is: 568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.82 : 1,348.49 = 379.04 : x
  2. Step 2: Convert to fraction form
    898.82/1,348.49 = 379.04/x
  3. Step 3: Cross multiply
    898.82x = 1,348.49 × 379.04
  4. Step 4: Simplify right side
    898.82x = 511,135.97
  5. Step 5: Solve for x
    x = 511,135.97/898.82
  6. Step 6: Final answer
    x = 568.68

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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.