Home / 2,188,228.80-3,279,718.80-1,122,722.40

Finding the Fourth Proportional to 2,188,228.80, 3,279,718.80 and 1,122,722.40

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Solution

The fourth proportional to 2,188,228.80, 3,279,718.80 and 1,122,722.40 is: 1,682,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,228.80 : 3,279,718.80 = 1,122,722.40 : x
  2. Step 2: Convert to fraction form
    2,188,228.80/3,279,718.80 = 1,122,722.40/x
  3. Step 3: Cross multiply
    2,188,228.80x = 3,279,718.80 × 1,122,722.40
  4. Step 4: Simplify right side
    2,188,228.80x = 3,682,213,762,461.12
  5. Step 5: Solve for x
    x = 3,682,213,762,461.12/2,188,228.80
  6. Step 6: Final answer
    x = 1,682,737.09

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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.