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Finding the Fourth Proportional to 1,060.40, 1,591.24 and 483.28

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Solution

The fourth proportional to 1,060.40, 1,591.24 and 483.28 is: 725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.40 : 1,591.24 = 483.28 : x
  2. Step 2: Convert to fraction form
    1,060.40/1,591.24 = 483.28/x
  3. Step 3: Cross multiply
    1,060.40x = 1,591.24 × 483.28
  4. Step 4: Simplify right side
    1,060.40x = 769,014.47
  5. Step 5: Solve for x
    x = 769,014.47/1,060.40
  6. Step 6: Final answer
    x = 725.21

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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.