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Finding the Fourth Proportional to 606,912.60, 909,980.10 and 252,067.80

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Solution

The fourth proportional to 606,912.60, 909,980.10 and 252,067.80 is: 377,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,912.60 : 909,980.10 = 252,067.80 : x
  2. Step 2: Convert to fraction form
    606,912.60/909,980.10 = 252,067.80/x
  3. Step 3: Cross multiply
    606,912.60x = 909,980.10 × 252,067.80
  4. Step 4: Simplify right side
    606,912.60x = 229,376,681,850.78
  5. Step 5: Solve for x
    x = 229,376,681,850.78/606,912.60
  6. Step 6: Final answer
    x = 377,940.22

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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.