Home / 2,189,139.20-3,285,782.40-1,349,331.20

Finding the Fourth Proportional to 2,189,139.20, 3,285,782.40 and 1,349,331.20

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Solution

The fourth proportional to 2,189,139.20, 3,285,782.40 and 1,349,331.20 is: 2,025,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,139.20 : 3,285,782.40 = 1,349,331.20 : x
  2. Step 2: Convert to fraction form
    2,189,139.20/3,285,782.40 = 1,349,331.20/x
  3. Step 3: Cross multiply
    2,189,139.20x = 3,285,782.40 × 1,349,331.20
  4. Step 4: Simplify right side
    2,189,139.20x = 4,433,608,708,730.88
  5. Step 5: Solve for x
    x = 4,433,608,708,730.88/2,189,139.20
  6. Step 6: Final answer
    x = 2,025,274.92

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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.