Home / 880,679.12-1,321,543.55-319,757.36

Finding the Fourth Proportional to 880,679.12, 1,321,543.55 and 319,757.36

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Solution

The fourth proportional to 880,679.12, 1,321,543.55 and 319,757.36 is: 479,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,679.12 : 1,321,543.55 = 319,757.36 : x
  2. Step 2: Convert to fraction form
    880,679.12/1,321,543.55 = 319,757.36/x
  3. Step 3: Cross multiply
    880,679.12x = 1,321,543.55 × 319,757.36
  4. Step 4: Simplify right side
    880,679.12x = 422,573,270,864.70
  5. Step 5: Solve for x
    x = 422,573,270,864.70/880,679.12
  6. Step 6: Final answer
    x = 479,826.61

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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.