Home / 1,435,755.72-1,981,334.40-782,380.56

Finding the Fourth Proportional to 1,435,755.72, 1,981,334.40 and 782,380.56

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Solution

The fourth proportional to 1,435,755.72, 1,981,334.40 and 782,380.56 is: 1,079,680.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,755.72 : 1,981,334.40 = 782,380.56 : x
  2. Step 2: Convert to fraction form
    1,435,755.72/1,981,334.40 = 782,380.56/x
  3. Step 3: Cross multiply
    1,435,755.72x = 1,981,334.40 × 782,380.56
  4. Step 4: Simplify right side
    1,435,755.72x = 1,550,157,517,419.26
  5. Step 5: Solve for x
    x = 1,550,157,517,419.26/1,435,755.72
  6. Step 6: Final answer
    x = 1,079,680.54

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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.