Home / 1,987,221.73-2,741,058.11-1,435,017.85

Finding the Fourth Proportional to 1,987,221.73, 2,741,058.11 and 1,435,017.85

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Solution

The fourth proportional to 1,987,221.73, 2,741,058.11 and 1,435,017.85 is: 1,979,380.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,221.73 : 2,741,058.11 = 1,435,017.85 : x
  2. Step 2: Convert to fraction form
    1,987,221.73/2,741,058.11 = 1,435,017.85/x
  3. Step 3: Cross multiply
    1,987,221.73x = 2,741,058.11 × 1,435,017.85
  4. Step 4: Simplify right side
    1,987,221.73x = 3,933,467,315,737.26
  5. Step 5: Solve for x
    x = 3,933,467,315,737.26/1,987,221.73
  6. Step 6: Final answer
    x = 1,979,380.19

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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.