Home / 1,020.92-1,531.18-327.41

Finding the Fourth Proportional to 1,020.92, 1,531.18 and 327.41

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Solution

The fourth proportional to 1,020.92, 1,531.18 and 327.41 is: 491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.92 : 1,531.18 = 327.41 : x
  2. Step 2: Convert to fraction form
    1,020.92/1,531.18 = 327.41/x
  3. Step 3: Cross multiply
    1,020.92x = 1,531.18 × 327.41
  4. Step 4: Simplify right side
    1,020.92x = 501,315.17
  5. Step 5: Solve for x
    x = 501,315.17/1,020.92
  6. Step 6: Final answer
    x = 491.04

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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.