Home / 394,519.20-591,778.80-331,533.60

Finding the Fourth Proportional to 394,519.20, 591,778.80 and 331,533.60

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Solution

The fourth proportional to 394,519.20, 591,778.80 and 331,533.60 is: 497,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,519.20 : 591,778.80 = 331,533.60 : x
  2. Step 2: Convert to fraction form
    394,519.20/591,778.80 = 331,533.60/x
  3. Step 3: Cross multiply
    394,519.20x = 591,778.80 × 331,533.60
  4. Step 4: Simplify right side
    394,519.20x = 196,194,555,967.68
  5. Step 5: Solve for x
    x = 196,194,555,967.68/394,519.20
  6. Step 6: Final answer
    x = 497,300.40

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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.