Home / 3,189,900.60-4,785,695.70-1,392,012.60

Finding the Fourth Proportional to 3,189,900.60, 4,785,695.70 and 1,392,012.60

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Solution

The fourth proportional to 3,189,900.60, 4,785,695.70 and 1,392,012.60 is: 2,088,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189,900.60 : 4,785,695.70 = 1,392,012.60 : x
  2. Step 2: Convert to fraction form
    3,189,900.60/4,785,695.70 = 1,392,012.60/x
  3. Step 3: Cross multiply
    3,189,900.60x = 4,785,695.70 × 1,392,012.60
  4. Step 4: Simplify right side
    3,189,900.60x = 6,661,748,714,165.82
  5. Step 5: Solve for x
    x = 6,661,748,714,165.82/3,189,900.60
  6. Step 6: Final answer
    x = 2,088,387.55

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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.