Home / 2,189,147.60-3,283,721.40-770,805.20

Finding the Fourth Proportional to 2,189,147.60, 3,283,721.40 and 770,805.20

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Solution

The fourth proportional to 2,189,147.60, 3,283,721.40 and 770,805.20 is: 1,156,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,147.60 : 3,283,721.40 = 770,805.20 : x
  2. Step 2: Convert to fraction form
    2,189,147.60/3,283,721.40 = 770,805.20/x
  3. Step 3: Cross multiply
    2,189,147.60x = 3,283,721.40 × 770,805.20
  4. Step 4: Simplify right side
    2,189,147.60x = 2,531,109,530,471.28
  5. Step 5: Solve for x
    x = 2,531,109,530,471.28/2,189,147.60
  6. Step 6: Final answer
    x = 1,156,207.80

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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.