Home / 1,381,474.49-1,906,405.85-769,626.41

Finding the Fourth Proportional to 1,381,474.49, 1,906,405.85 and 769,626.41

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Solution

The fourth proportional to 1,381,474.49, 1,906,405.85 and 769,626.41 is: 1,062,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,474.49 : 1,906,405.85 = 769,626.41 : x
  2. Step 2: Convert to fraction form
    1,381,474.49/1,906,405.85 = 769,626.41/x
  3. Step 3: Cross multiply
    1,381,474.49x = 1,906,405.85 × 769,626.41
  4. Step 4: Simplify right side
    1,381,474.49x = 1,467,220,282,730.54
  5. Step 5: Solve for x
    x = 1,467,220,282,730.54/1,381,474.49
  6. Step 6: Final answer
    x = 1,062,068.32

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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.