Home / 1,381,543.60-1,906,627.80-769,736.56

Finding the Fourth Proportional to 1,381,543.60, 1,906,627.80 and 769,736.56

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Solution

The fourth proportional to 1,381,543.60, 1,906,627.80 and 769,736.56 is: 1,062,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,543.60 : 1,906,627.80 = 769,736.56 : x
  2. Step 2: Convert to fraction form
    1,381,543.60/1,906,627.80 = 769,736.56/x
  3. Step 3: Cross multiply
    1,381,543.60x = 1,906,627.80 × 769,736.56
  4. Step 4: Simplify right side
    1,381,543.60x = 1,467,601,123,972.37
  5. Step 5: Solve for x
    x = 1,467,601,123,972.37/1,381,543.60
  6. Step 6: Final answer
    x = 1,062,290.85

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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.