Home / 681,261.48-940,141.08-394,947.90

Finding the Fourth Proportional to 681,261.48, 940,141.08 and 394,947.90

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Solution

The fourth proportional to 681,261.48, 940,141.08 and 394,947.90 is: 545,028.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,261.48 : 940,141.08 = 394,947.90 : x
  2. Step 2: Convert to fraction form
    681,261.48/940,141.08 = 394,947.90/x
  3. Step 3: Cross multiply
    681,261.48x = 940,141.08 × 394,947.90
  4. Step 4: Simplify right side
    681,261.48x = 371,306,745,249.73
  5. Step 5: Solve for x
    x = 371,306,745,249.73/681,261.48
  6. Step 6: Final answer
    x = 545,028.24

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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.