Home / 1,942,288.89-2,682,051.11-1,218,380.95

Finding the Fourth Proportional to 1,942,288.89, 2,682,051.11 and 1,218,380.95

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Solution

The fourth proportional to 1,942,288.89, 2,682,051.11 and 1,218,380.95 is: 1,682,427.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,288.89 : 2,682,051.11 = 1,218,380.95 : x
  2. Step 2: Convert to fraction form
    1,942,288.89/2,682,051.11 = 1,218,380.95/x
  3. Step 3: Cross multiply
    1,942,288.89x = 2,682,051.11 × 1,218,380.95
  4. Step 4: Simplify right side
    1,942,288.89x = 3,267,759,979,350.35
  5. Step 5: Solve for x
    x = 3,267,759,979,350.35/1,942,288.89
  6. Step 6: Final answer
    x = 1,682,427.37

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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.