Home / 815,958.92-1,223,063.34-394,655.24

Finding the Fourth Proportional to 815,958.92, 1,223,063.34 and 394,655.24

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Solution

The fourth proportional to 815,958.92, 1,223,063.34 and 394,655.24 is: 591,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,958.92 : 1,223,063.34 = 394,655.24 : x
  2. Step 2: Convert to fraction form
    815,958.92/1,223,063.34 = 394,655.24/x
  3. Step 3: Cross multiply
    815,958.92x = 1,223,063.34 × 394,655.24
  4. Step 4: Simplify right side
    815,958.92x = 482,688,355,982.90
  5. Step 5: Solve for x
    x = 482,688,355,982.90/815,958.92
  6. Step 6: Final answer
    x = 591,559.63

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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.