Home / 3,189,911.60-4,785,712.20-1,392,023.60

Finding the Fourth Proportional to 3,189,911.60, 4,785,712.20 and 1,392,023.60

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Solution

The fourth proportional to 3,189,911.60, 4,785,712.20 and 1,392,023.60 is: 2,088,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189,911.60 : 4,785,712.20 = 1,392,023.60 : x
  2. Step 2: Convert to fraction form
    3,189,911.60/4,785,712.20 = 1,392,023.60/x
  3. Step 3: Cross multiply
    3,189,911.60x = 4,785,712.20 × 1,392,023.60
  4. Step 4: Simplify right side
    3,189,911.60x = 6,661,824,325,207.92
  5. Step 5: Solve for x
    x = 6,661,824,325,207.92/3,189,911.60
  6. Step 6: Final answer
    x = 2,088,404.06

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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.