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Finding the Fourth Proportional to 3,393,978.75, 5,090,954.94 and 1,372,198.41

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Solution

The fourth proportional to 3,393,978.75, 5,090,954.94 and 1,372,198.41 is: 2,058,292.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393,978.75 : 5,090,954.94 = 1,372,198.41 : x
  2. Step 2: Convert to fraction form
    3,393,978.75/5,090,954.94 = 1,372,198.41/x
  3. Step 3: Cross multiply
    3,393,978.75x = 5,090,954.94 × 1,372,198.41
  4. Step 4: Simplify right side
    3,393,978.75x = 6,985,800,274,049.65
  5. Step 5: Solve for x
    x = 6,985,800,274,049.65/3,393,978.75
  6. Step 6: Final answer
    x = 2,058,292.28

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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.