Home / 815,964.92-1,223,072.34-394,661.24

Finding the Fourth Proportional to 815,964.92, 1,223,072.34 and 394,661.24

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Solution

The fourth proportional to 815,964.92, 1,223,072.34 and 394,661.24 is: 591,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,964.92 : 1,223,072.34 = 394,661.24 : x
  2. Step 2: Convert to fraction form
    815,964.92/1,223,072.34 = 394,661.24/x
  3. Step 3: Cross multiply
    815,964.92x = 1,223,072.34 × 394,661.24
  4. Step 4: Simplify right side
    815,964.92x = 482,699,246,314.10
  5. Step 5: Solve for x
    x = 482,699,246,314.10/815,964.92
  6. Step 6: Final answer
    x = 591,568.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.