Home / 1,279,348.60-1,764,760.95-826,639.60

Finding the Fourth Proportional to 1,279,348.60, 1,764,760.95 and 826,639.60

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Solution

The fourth proportional to 1,279,348.60, 1,764,760.95 and 826,639.60 is: 1,140,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,348.60 : 1,764,760.95 = 826,639.60 : x
  2. Step 2: Convert to fraction form
    1,279,348.60/1,764,760.95 = 826,639.60/x
  3. Step 3: Cross multiply
    1,279,348.60x = 1,764,760.95 × 826,639.60
  4. Step 4: Simplify right side
    1,279,348.60x = 1,458,821,285,803.62
  5. Step 5: Solve for x
    x = 1,458,821,285,803.62/1,279,348.60
  6. Step 6: Final answer
    x = 1,140,284.43

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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.