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Finding the Fourth Proportional to 394,906.08, 544,797.28 and 231,479.74

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Solution

The fourth proportional to 394,906.08, 544,797.28 and 231,479.74 is: 319,340.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,906.08 : 544,797.28 = 231,479.74 : x
  2. Step 2: Convert to fraction form
    394,906.08/544,797.28 = 231,479.74/x
  3. Step 3: Cross multiply
    394,906.08x = 544,797.28 × 231,479.74
  4. Step 4: Simplify right side
    394,906.08x = 126,109,532,727.11
  5. Step 5: Solve for x
    x = 126,109,532,727.11/394,906.08
  6. Step 6: Final answer
    x = 319,340.57

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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.