Home / 880,884.20-1,321,326.30-319,845.80

Finding the Fourth Proportional to 880,884.20, 1,321,326.30 and 319,845.80

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Solution

The fourth proportional to 880,884.20, 1,321,326.30 and 319,845.80 is: 479,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,884.20 : 1,321,326.30 = 319,845.80 : x
  2. Step 2: Convert to fraction form
    880,884.20/1,321,326.30 = 319,845.80/x
  3. Step 3: Cross multiply
    880,884.20x = 1,321,326.30 × 319,845.80
  4. Step 4: Simplify right side
    880,884.20x = 422,620,667,484.54
  5. Step 5: Solve for x
    x = 422,620,667,484.54/880,884.20
  6. Step 6: Final answer
    x = 479,768.70

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Similar ratio
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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.