Home / 871,189.44-1,202,236.80-489,249.60

Finding the Fourth Proportional to 871,189.44, 1,202,236.80 and 489,249.60

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Solution

The fourth proportional to 871,189.44, 1,202,236.80 and 489,249.60 is: 675,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,189.44 : 1,202,236.80 = 489,249.60 : x
  2. Step 2: Convert to fraction form
    871,189.44/1,202,236.80 = 489,249.60/x
  3. Step 3: Cross multiply
    871,189.44x = 1,202,236.80 × 489,249.60
  4. Step 4: Simplify right side
    871,189.44x = 588,193,873,505.28
  5. Step 5: Solve for x
    x = 588,193,873,505.28/871,189.44
  6. Step 6: Final answer
    x = 675,161.85

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Double scale
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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.