Home / 2,589,640.80-3,884,461.20-991,381.20

Finding the Fourth Proportional to 2,589,640.80, 3,884,461.20 and 991,381.20

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Solution

The fourth proportional to 2,589,640.80, 3,884,461.20 and 991,381.20 is: 1,487,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589,640.80 : 3,884,461.20 = 991,381.20 : x
  2. Step 2: Convert to fraction form
    2,589,640.80/3,884,461.20 = 991,381.20/x
  3. Step 3: Cross multiply
    2,589,640.80x = 3,884,461.20 × 991,381.20
  4. Step 4: Simplify right side
    2,589,640.80x = 3,850,981,805,809.44
  5. Step 5: Solve for x
    x = 3,850,981,805,809.44/2,589,640.80
  6. Step 6: Final answer
    x = 1,487,071.80

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Similar ratio
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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.