Home / 457,232.20-685,848.30-394,246.60

Finding the Fourth Proportional to 457,232.20, 685,848.30 and 394,246.60

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Solution

The fourth proportional to 457,232.20, 685,848.30 and 394,246.60 is: 591,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,232.20 : 685,848.30 = 394,246.60 : x
  2. Step 2: Convert to fraction form
    457,232.20/685,848.30 = 394,246.60/x
  3. Step 3: Cross multiply
    457,232.20x = 685,848.30 × 394,246.60
  4. Step 4: Simplify right side
    457,232.20x = 270,393,360,390.78
  5. Step 5: Solve for x
    x = 270,393,360,390.78/457,232.20
  6. Step 6: Final answer
    x = 591,369.90

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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.