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Finding the Fourth Proportional to 826.04, 1,238.97 and 363.85

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Solution

The fourth proportional to 826.04, 1,238.97 and 363.85 is: 545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    826.04 : 1,238.97 = 363.85 : x
  2. Step 2: Convert to fraction form
    826.04/1,238.97 = 363.85/x
  3. Step 3: Cross multiply
    826.04x = 1,238.97 × 363.85
  4. Step 4: Simplify right side
    826.04x = 450,793.04
  5. Step 5: Solve for x
    x = 450,793.04/826.04
  6. Step 6: Final answer
    x = 545.73

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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.