Home / 496,540.80-743,936.40-407,311.20

Finding the Fourth Proportional to 496,540.80, 743,936.40 and 407,311.20

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Solution

The fourth proportional to 496,540.80, 743,936.40 and 407,311.20 is: 610,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,540.80 : 743,936.40 = 407,311.20 : x
  2. Step 2: Convert to fraction form
    496,540.80/743,936.40 = 407,311.20/x
  3. Step 3: Cross multiply
    496,540.80x = 743,936.40 × 407,311.20
  4. Step 4: Simplify right side
    496,540.80x = 303,013,627,807.68
  5. Step 5: Solve for x
    x = 303,013,627,807.68/496,540.80
  6. Step 6: Final answer
    x = 610,249.20

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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.