Home / 396,320.80-594,481.20-130,122.40

Finding the Fourth Proportional to 396,320.80, 594,481.20 and 130,122.40

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Solution

The fourth proportional to 396,320.80, 594,481.20 and 130,122.40 is: 195,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,320.80 : 594,481.20 = 130,122.40 : x
  2. Step 2: Convert to fraction form
    396,320.80/594,481.20 = 130,122.40/x
  3. Step 3: Cross multiply
    396,320.80x = 594,481.20 × 130,122.40
  4. Step 4: Simplify right side
    396,320.80x = 77,355,320,498.88
  5. Step 5: Solve for x
    x = 77,355,320,498.88/396,320.80
  6. Step 6: Final answer
    x = 195,183.60

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1.5x scale

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.