Home / 396,819.20-547,310.40-275,899.96

Finding the Fourth Proportional to 396,819.20, 547,310.40 and 275,899.96

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Solution

The fourth proportional to 396,819.20, 547,310.40 and 275,899.96 is: 380,533.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,819.20 : 547,310.40 = 275,899.96 : x
  2. Step 2: Convert to fraction form
    396,819.20/547,310.40 = 275,899.96/x
  3. Step 3: Cross multiply
    396,819.20x = 547,310.40 × 275,899.96
  4. Step 4: Simplify right side
    396,819.20x = 151,002,917,467.58
  5. Step 5: Solve for x
    x = 151,002,917,467.58/396,819.20
  6. Step 6: Final answer
    x = 380,533.29

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1.5x scale

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.