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Finding the Fourth Proportional to 606,469.20, 908,148.60 and 447,838.80

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Solution

The fourth proportional to 606,469.20, 908,148.60 and 447,838.80 is: 670,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,469.20 : 908,148.60 = 447,838.80 : x
  2. Step 2: Convert to fraction form
    606,469.20/908,148.60 = 447,838.80/x
  3. Step 3: Cross multiply
    606,469.20x = 908,148.60 × 447,838.80
  4. Step 4: Simplify right side
    606,469.20x = 406,704,179,245.68
  5. Step 5: Solve for x
    x = 406,704,179,245.68/606,469.20
  6. Step 6: Final answer
    x = 670,609.78

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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.