Home / 2,077,059.40-3,115,589.10-1,279,241.80

Finding the Fourth Proportional to 2,077,059.40, 3,115,589.10 and 1,279,241.80

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Solution

The fourth proportional to 2,077,059.40, 3,115,589.10 and 1,279,241.80 is: 1,918,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077,059.40 : 3,115,589.10 = 1,279,241.80 : x
  2. Step 2: Convert to fraction form
    2,077,059.40/3,115,589.10 = 1,279,241.80/x
  3. Step 3: Cross multiply
    2,077,059.40x = 3,115,589.10 × 1,279,241.80
  4. Step 4: Simplify right side
    2,077,059.40x = 3,985,591,808,344.38
  5. Step 5: Solve for x
    x = 3,985,591,808,344.38/2,077,059.40
  6. Step 6: Final answer
    x = 1,918,862.70

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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.