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Finding the Fourth Proportional to 791.73, 1,186.17 and 483.44

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Solution

The fourth proportional to 791.73, 1,186.17 and 483.44 is: 724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.73 : 1,186.17 = 483.44 : x
  2. Step 2: Convert to fraction form
    791.73/1,186.17 = 483.44/x
  3. Step 3: Cross multiply
    791.73x = 1,186.17 × 483.44
  4. Step 4: Simplify right side
    791.73x = 573,436.09
  5. Step 5: Solve for x
    x = 573,436.09/791.73
  6. Step 6: Final answer
    x = 724.28

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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.