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Finding the Fourth Proportional to 489,249.68, 675,198.84 and 271,529.60

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Solution

The fourth proportional to 489,249.68, 675,198.84 and 271,529.60 is: 374,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,249.68 : 675,198.84 = 271,529.60 : x
  2. Step 2: Convert to fraction form
    489,249.68/675,198.84 = 271,529.60/x
  3. Step 3: Cross multiply
    489,249.68x = 675,198.84 × 271,529.60
  4. Step 4: Simplify right side
    489,249.68x = 183,336,470,945.66
  5. Step 5: Solve for x
    x = 183,336,470,945.66/489,249.68
  6. Step 6: Final answer
    x = 374,729.87

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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.