Home / 880,877.70-1,321,316.55-319,839.30

Finding the Fourth Proportional to 880,877.70, 1,321,316.55 and 319,839.30

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Solution

The fourth proportional to 880,877.70, 1,321,316.55 and 319,839.30 is: 479,758.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,877.70 : 1,321,316.55 = 319,839.30 : x
  2. Step 2: Convert to fraction form
    880,877.70/1,321,316.55 = 319,839.30/x
  3. Step 3: Cross multiply
    880,877.70x = 1,321,316.55 × 319,839.30
  4. Step 4: Simplify right side
    880,877.70x = 422,608,960,430.42
  5. Step 5: Solve for x
    x = 422,608,960,430.42/880,877.70
  6. Step 6: Final answer
    x = 479,758.95

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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.