Home / 2,080,357.60-3,120,536.40-1,279,040.80

Finding the Fourth Proportional to 2,080,357.60, 3,120,536.40 and 1,279,040.80

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Solution

The fourth proportional to 2,080,357.60, 3,120,536.40 and 1,279,040.80 is: 1,918,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,357.60 : 3,120,536.40 = 1,279,040.80 : x
  2. Step 2: Convert to fraction form
    2,080,357.60/3,120,536.40 = 1,279,040.80/x
  3. Step 3: Cross multiply
    2,080,357.60x = 3,120,536.40 × 1,279,040.80
  4. Step 4: Simplify right side
    2,080,357.60x = 3,991,293,373,485.12
  5. Step 5: Solve for x
    x = 3,991,293,373,485.12/2,080,357.60
  6. Step 6: Final answer
    x = 1,918,561.20

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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.