Home / 2,321,793.40-3,203,891.66-1,289,203.78

Finding the Fourth Proportional to 2,321,793.40, 3,203,891.66 and 1,289,203.78

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Solution

The fourth proportional to 2,321,793.40, 3,203,891.66 and 1,289,203.78 is: 1,778,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321,793.40 : 3,203,891.66 = 1,289,203.78 : x
  2. Step 2: Convert to fraction form
    2,321,793.40/3,203,891.66 = 1,289,203.78/x
  3. Step 3: Cross multiply
    2,321,793.40x = 3,203,891.66 × 1,289,203.78
  4. Step 4: Simplify right side
    2,321,793.40x = 4,130,469,238,782.48
  5. Step 5: Solve for x
    x = 4,130,469,238,782.48/2,321,793.40
  6. Step 6: Final answer
    x = 1,778,999.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.