Home / 1,975,143.12-2,725,919.54-1,115,759.04

Finding the Fourth Proportional to 1,975,143.12, 2,725,919.54 and 1,115,759.04

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Solution

The fourth proportional to 1,975,143.12, 2,725,919.54 and 1,115,759.04 is: 1,539,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975,143.12 : 2,725,919.54 = 1,115,759.04 : x
  2. Step 2: Convert to fraction form
    1,975,143.12/2,725,919.54 = 1,115,759.04/x
  3. Step 3: Cross multiply
    1,975,143.12x = 2,725,919.54 × 1,115,759.04
  4. Step 4: Simplify right side
    1,975,143.12x = 3,041,469,363,488.85
  5. Step 5: Solve for x
    x = 3,041,469,363,488.85/1,975,143.12
  6. Step 6: Final answer
    x = 1,539,872.90

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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.