Home / 494,845.20-741,611.70-438,420.60

Finding the Fourth Proportional to 494,845.20, 741,611.70 and 438,420.60

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Solution

The fourth proportional to 494,845.20, 741,611.70 and 438,420.60 is: 657,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,845.20 : 741,611.70 = 438,420.60 : x
  2. Step 2: Convert to fraction form
    494,845.20/741,611.70 = 438,420.60/x
  3. Step 3: Cross multiply
    494,845.20x = 741,611.70 × 438,420.60
  4. Step 4: Simplify right side
    494,845.20x = 325,137,846,481.02
  5. Step 5: Solve for x
    x = 325,137,846,481.02/494,845.20
  6. Step 6: Final answer
    x = 657,049.61

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1.5x scale

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.