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Finding the Fourth Proportional to 324,479.46, 486,843.84 and 228,508.78

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Solution

The fourth proportional to 324,479.46, 486,843.84 and 228,508.78 is: 342,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,479.46 : 486,843.84 = 228,508.78 : x
  2. Step 2: Convert to fraction form
    324,479.46/486,843.84 = 228,508.78/x
  3. Step 3: Cross multiply
    324,479.46x = 486,843.84 × 228,508.78
  4. Step 4: Simplify right side
    324,479.46x = 111,248,091,928.92
  5. Step 5: Solve for x
    x = 111,248,091,928.92/324,479.46
  6. Step 6: Final answer
    x = 342,850.95

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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.