Home / 1,381,426.27-1,906,339.53-769,578.19

Finding the Fourth Proportional to 1,381,426.27, 1,906,339.53 and 769,578.19

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Solution

The fourth proportional to 1,381,426.27, 1,906,339.53 and 769,578.19 is: 1,062,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,426.27 : 1,906,339.53 = 769,578.19 : x
  2. Step 2: Convert to fraction form
    1,381,426.27/1,906,339.53 = 769,578.19/x
  3. Step 3: Cross multiply
    1,381,426.27x = 1,906,339.53 × 769,578.19
  4. Step 4: Simplify right side
    1,381,426.27x = 1,467,077,325,022.85
  5. Step 5: Solve for x
    x = 1,467,077,325,022.85/1,381,426.27
  6. Step 6: Final answer
    x = 1,062,001.90

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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.