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Finding the Fourth Proportional to 550.08, 826.92 and 545.76

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Solution

The fourth proportional to 550.08, 826.92 and 545.76 is: 820.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.08 : 826.92 = 545.76 : x
  2. Step 2: Convert to fraction form
    550.08/826.92 = 545.76/x
  3. Step 3: Cross multiply
    550.08x = 826.92 × 545.76
  4. Step 4: Simplify right side
    550.08x = 451,299.86
  5. Step 5: Solve for x
    x = 451,299.86/550.08
  6. Step 6: Final answer
    x = 820.43

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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.