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Finding the Fourth Proportional to 681,843.78, 1,022,770.74 and 302,662.56

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Solution

The fourth proportional to 681,843.78, 1,022,770.74 and 302,662.56 is: 453,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,843.78 : 1,022,770.74 = 302,662.56 : x
  2. Step 2: Convert to fraction form
    681,843.78/1,022,770.74 = 302,662.56/x
  3. Step 3: Cross multiply
    681,843.78x = 1,022,770.74 × 302,662.56
  4. Step 4: Simplify right side
    681,843.78x = 309,554,410,461.49
  5. Step 5: Solve for x
    x = 309,554,410,461.49/681,843.78
  6. Step 6: Final answer
    x = 453,996.09

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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.