Home / 809,129.73-1,207,542.12-719,451.39

Finding the Fourth Proportional to 809,129.73, 1,207,542.12 and 719,451.39

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Solution

The fourth proportional to 809,129.73, 1,207,542.12 and 719,451.39 is: 1,073,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,129.73 : 1,207,542.12 = 719,451.39 : x
  2. Step 2: Convert to fraction form
    809,129.73/1,207,542.12 = 719,451.39/x
  3. Step 3: Cross multiply
    809,129.73x = 1,207,542.12 × 719,451.39
  4. Step 4: Simplify right side
    809,129.73x = 868,767,856,717.55
  5. Step 5: Solve for x
    x = 868,767,856,717.55/809,129.73
  6. Step 6: Final answer
    x = 1,073,706.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.