Home / 1,262,138.94-1,741,751.64-689,179.59

Finding the Fourth Proportional to 1,262,138.94, 1,741,751.64 and 689,179.59

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Solution

The fourth proportional to 1,262,138.94, 1,741,751.64 and 689,179.59 is: 951,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,138.94 : 1,741,751.64 = 689,179.59 : x
  2. Step 2: Convert to fraction form
    1,262,138.94/1,741,751.64 = 689,179.59/x
  3. Step 3: Cross multiply
    1,262,138.94x = 1,741,751.64 × 689,179.59
  4. Step 4: Simplify right side
    1,262,138.94x = 1,200,379,681,137.03
  5. Step 5: Solve for x
    x = 1,200,379,681,137.03/1,262,138.94
  6. Step 6: Final answer
    x = 951,067.78

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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.