Home / 1,381,845.29-2,071,195.62-840,908.51

Finding the Fourth Proportional to 1,381,845.29, 2,071,195.62 and 840,908.51

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Solution

The fourth proportional to 1,381,845.29, 2,071,195.62 and 840,908.51 is: 1,260,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,845.29 : 2,071,195.62 = 840,908.51 : x
  2. Step 2: Convert to fraction form
    1,381,845.29/2,071,195.62 = 840,908.51/x
  3. Step 3: Cross multiply
    1,381,845.29x = 2,071,195.62 × 840,908.51
  4. Step 4: Simplify right side
    1,381,845.29x = 1,741,686,022,732.73
  5. Step 5: Solve for x
    x = 1,741,686,022,732.73/1,381,845.29
  6. Step 6: Final answer
    x = 1,260,405.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.