Home / 1,279,348.75-1,764,761.19-826,639.75

Finding the Fourth Proportional to 1,279,348.75, 1,764,761.19 and 826,639.75

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Solution

The fourth proportional to 1,279,348.75, 1,764,761.19 and 826,639.75 is: 1,140,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,348.75 : 1,764,761.19 = 826,639.75 : x
  2. Step 2: Convert to fraction form
    1,279,348.75/1,764,761.19 = 826,639.75/x
  3. Step 3: Cross multiply
    1,279,348.75x = 1,764,761.19 × 826,639.75
  4. Step 4: Simplify right side
    1,279,348.75x = 1,458,821,748,911.30
  5. Step 5: Solve for x
    x = 1,458,821,748,911.30/1,279,348.75
  6. Step 6: Final answer
    x = 1,140,284.66

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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.