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Finding the Fourth Proportional to 863.73, 1,192.19 and 601.65

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Solution

The fourth proportional to 863.73, 1,192.19 and 601.65 is: 830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.73 : 1,192.19 = 601.65 : x
  2. Step 2: Convert to fraction form
    863.73/1,192.19 = 601.65/x
  3. Step 3: Cross multiply
    863.73x = 1,192.19 × 601.65
  4. Step 4: Simplify right side
    863.73x = 717,278.11
  5. Step 5: Solve for x
    x = 717,278.11/863.73
  6. Step 6: Final answer
    x = 830.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.