Home / 1,262,104.80-1,741,775.52-689,198.40

Finding the Fourth Proportional to 1,262,104.80, 1,741,775.52 and 689,198.40

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Solution

The fourth proportional to 1,262,104.80, 1,741,775.52 and 689,198.40 is: 951,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,104.80 : 1,741,775.52 = 689,198.40 : x
  2. Step 2: Convert to fraction form
    1,262,104.80/1,741,775.52 = 689,198.40/x
  3. Step 3: Cross multiply
    1,262,104.80x = 1,741,775.52 × 689,198.40
  4. Step 4: Simplify right side
    1,262,104.80x = 1,200,428,901,543.17
  5. Step 5: Solve for x
    x = 1,200,428,901,543.17/1,262,104.80
  6. Step 6: Final answer
    x = 951,132.51

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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.