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Finding the Fourth Proportional to 542,249.25, 813,861.72 and 289,745.58

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Solution

The fourth proportional to 542,249.25, 813,861.72 and 289,745.58 is: 434,879.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,249.25 : 813,861.72 = 289,745.58 : x
  2. Step 2: Convert to fraction form
    542,249.25/813,861.72 = 289,745.58/x
  3. Step 3: Cross multiply
    542,249.25x = 813,861.72 × 289,745.58
  4. Step 4: Simplify right side
    542,249.25x = 235,812,835,002.13
  5. Step 5: Solve for x
    x = 235,812,835,002.13/542,249.25
  6. Step 6: Final answer
    x = 434,879.04

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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.