Home / 394,525.20-591,787.80-331,539.60

Finding the Fourth Proportional to 394,525.20, 591,787.80 and 331,539.60

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Solution

The fourth proportional to 394,525.20, 591,787.80 and 331,539.60 is: 497,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,525.20 : 591,787.80 = 331,539.60 : x
  2. Step 2: Convert to fraction form
    394,525.20/591,787.80 = 331,539.60/x
  3. Step 3: Cross multiply
    394,525.20x = 591,787.80 × 331,539.60
  4. Step 4: Simplify right side
    394,525.20x = 196,201,090,496.88
  5. Step 5: Solve for x
    x = 196,201,090,496.88/394,525.20
  6. Step 6: Final answer
    x = 497,309.40

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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.