Home / 3,150,991.20-4,728,819.60-1,259,090.40

Finding the Fourth Proportional to 3,150,991.20, 4,728,819.60 and 1,259,090.40

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Solution

The fourth proportional to 3,150,991.20, 4,728,819.60 and 1,259,090.40 is: 1,889,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150,991.20 : 4,728,819.60 = 1,259,090.40 : x
  2. Step 2: Convert to fraction form
    3,150,991.20/4,728,819.60 = 1,259,090.40/x
  3. Step 3: Cross multiply
    3,150,991.20x = 4,728,819.60 × 1,259,090.40
  4. Step 4: Simplify right side
    3,150,991.20x = 5,954,011,361,691.84
  5. Step 5: Solve for x
    x = 5,954,011,361,691.84/3,150,991.20
  6. Step 6: Final answer
    x = 1,889,567.75

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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.