Home / 843,608.80-1,265,524.20-311,503.60

Finding the Fourth Proportional to 843,608.80, 1,265,524.20 and 311,503.60

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Solution

The fourth proportional to 843,608.80, 1,265,524.20 and 311,503.60 is: 467,296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,608.80 : 1,265,524.20 = 311,503.60 : x
  2. Step 2: Convert to fraction form
    843,608.80/1,265,524.20 = 311,503.60/x
  3. Step 3: Cross multiply
    843,608.80x = 1,265,524.20 × 311,503.60
  4. Step 4: Simplify right side
    843,608.80x = 394,215,344,187.12
  5. Step 5: Solve for x
    x = 394,215,344,187.12/843,608.80
  6. Step 6: Final answer
    x = 467,296.39

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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.