Home / 388,933.20-582,478.20-263,595.60

Finding the Fourth Proportional to 388,933.20, 582,478.20 and 263,595.60

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Solution

The fourth proportional to 388,933.20, 582,478.20 and 263,595.60 is: 394,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,933.20 : 582,478.20 = 263,595.60 : x
  2. Step 2: Convert to fraction form
    388,933.20/582,478.20 = 263,595.60/x
  3. Step 3: Cross multiply
    388,933.20x = 582,478.20 × 263,595.60
  4. Step 4: Simplify right side
    388,933.20x = 153,538,690,615.92
  5. Step 5: Solve for x
    x = 153,538,690,615.92/388,933.20
  6. Step 6: Final answer
    x = 394,768.79

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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.