Home / 391,576.32-587,077.20-125,183.52

Finding the Fourth Proportional to 391,576.32, 587,077.20 and 125,183.52

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Solution

The fourth proportional to 391,576.32, 587,077.20 and 125,183.52 is: 187,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,576.32 : 587,077.20 = 125,183.52 : x
  2. Step 2: Convert to fraction form
    391,576.32/587,077.20 = 125,183.52/x
  3. Step 3: Cross multiply
    391,576.32x = 587,077.20 × 125,183.52
  4. Step 4: Simplify right side
    391,576.32x = 73,492,390,407.74
  5. Step 5: Solve for x
    x = 73,492,390,407.74/391,576.32
  6. Step 6: Final answer
    x = 187,683.44

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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.