Home / 1,279,348.10-1,764,760.26-826,639.10

Finding the Fourth Proportional to 1,279,348.10, 1,764,760.26 and 826,639.10

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Solution

The fourth proportional to 1,279,348.10, 1,764,760.26 and 826,639.10 is: 1,140,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,348.10 : 1,764,760.26 = 826,639.10 : x
  2. Step 2: Convert to fraction form
    1,279,348.10/1,764,760.26 = 826,639.10/x
  3. Step 3: Cross multiply
    1,279,348.10x = 1,764,760.26 × 826,639.10
  4. Step 4: Simplify right side
    1,279,348.10x = 1,458,819,833,042.17
  5. Step 5: Solve for x
    x = 1,458,819,833,042.17/1,279,348.10
  6. Step 6: Final answer
    x = 1,140,283.74

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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.