Home / 436,890.20-654,023.10-259,305.80

Finding the Fourth Proportional to 436,890.20, 654,023.10 and 259,305.80

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Solution

The fourth proportional to 436,890.20, 654,023.10 and 259,305.80 is: 388,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,890.20 : 654,023.10 = 259,305.80 : x
  2. Step 2: Convert to fraction form
    436,890.20/654,023.10 = 259,305.80/x
  3. Step 3: Cross multiply
    436,890.20x = 654,023.10 × 259,305.80
  4. Step 4: Simplify right side
    436,890.20x = 169,591,983,163.98
  5. Step 5: Solve for x
    x = 169,591,983,163.98/436,890.20
  6. Step 6: Final answer
    x = 388,179.87

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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.