Home / 2,077,047.40-3,115,571.10-1,279,229.80

Finding the Fourth Proportional to 2,077,047.40, 3,115,571.10 and 1,279,229.80

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Solution

The fourth proportional to 2,077,047.40, 3,115,571.10 and 1,279,229.80 is: 1,918,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077,047.40 : 3,115,571.10 = 1,279,229.80 : x
  2. Step 2: Convert to fraction form
    2,077,047.40/3,115,571.10 = 1,279,229.80/x
  3. Step 3: Cross multiply
    2,077,047.40x = 3,115,571.10 × 1,279,229.80
  4. Step 4: Simplify right side
    2,077,047.40x = 3,985,531,395,138.78
  5. Step 5: Solve for x
    x = 3,985,531,395,138.78/2,077,047.40
  6. Step 6: Final answer
    x = 1,918,844.70

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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.