Home / 394,081.08-591,204.69-127,820.88

Finding the Fourth Proportional to 394,081.08, 591,204.69 and 127,820.88

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Solution

The fourth proportional to 394,081.08, 591,204.69 and 127,820.88 is: 191,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,081.08 : 591,204.69 = 127,820.88 : x
  2. Step 2: Convert to fraction form
    394,081.08/591,204.69 = 127,820.88/x
  3. Step 3: Cross multiply
    394,081.08x = 591,204.69 × 127,820.88
  4. Step 4: Simplify right side
    394,081.08x = 75,568,303,735.93
  5. Step 5: Solve for x
    x = 75,568,303,735.93/394,081.08
  6. Step 6: Final answer
    x = 191,758.26

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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.