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Finding the Fourth Proportional to 404,137.20, 606,205.80 and 303,753.90

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Solution

The fourth proportional to 404,137.20, 606,205.80 and 303,753.90 is: 455,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,137.20 : 606,205.80 = 303,753.90 : x
  2. Step 2: Convert to fraction form
    404,137.20/606,205.80 = 303,753.90/x
  3. Step 3: Cross multiply
    404,137.20x = 606,205.80 × 303,753.90
  4. Step 4: Simplify right side
    404,137.20x = 184,137,375,952.62
  5. Step 5: Solve for x
    x = 184,137,375,952.62/404,137.20
  6. Step 6: Final answer
    x = 455,630.85

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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.