Home / 1,381,819.61-1,906,891.77-769,998.16

Finding the Fourth Proportional to 1,381,819.61, 1,906,891.77 and 769,998.16

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Solution

The fourth proportional to 1,381,819.61, 1,906,891.77 and 769,998.16 is: 1,062,586.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,819.61 : 1,906,891.77 = 769,998.16 : x
  2. Step 2: Convert to fraction form
    1,381,819.61/1,906,891.77 = 769,998.16/x
  3. Step 3: Cross multiply
    1,381,819.61x = 1,906,891.77 × 769,998.16
  4. Step 4: Simplify right side
    1,381,819.61x = 1,468,303,162,171.82
  5. Step 5: Solve for x
    x = 1,468,303,162,171.82/1,381,819.61
  6. Step 6: Final answer
    x = 1,062,586.71

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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.