Home / 880,766.20-1,321,667.70-319,727.80

Finding the Fourth Proportional to 880,766.20, 1,321,667.70 and 319,727.80

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Solution

The fourth proportional to 880,766.20, 1,321,667.70 and 319,727.80 is: 479,779.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,766.20 : 1,321,667.70 = 319,727.80 : x
  2. Step 2: Convert to fraction form
    880,766.20/1,321,667.70 = 319,727.80/x
  3. Step 3: Cross multiply
    880,766.20x = 1,321,667.70 × 319,727.80
  4. Step 4: Simplify right side
    880,766.20x = 422,573,906,052.06
  5. Step 5: Solve for x
    x = 422,573,906,052.06/880,766.20
  6. Step 6: Final answer
    x = 479,779.88

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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.