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Finding the Fourth Proportional to 800,636.82, 1,203,835.92 and 738,220.52

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Solution

The fourth proportional to 800,636.82, 1,203,835.92 and 738,220.52 is: 1,109,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,636.82 : 1,203,835.92 = 738,220.52 : x
  2. Step 2: Convert to fraction form
    800,636.82/1,203,835.92 = 738,220.52/x
  3. Step 3: Cross multiply
    800,636.82x = 1,203,835.92 × 738,220.52
  4. Step 4: Simplify right side
    800,636.82x = 888,696,378,857.08
  5. Step 5: Solve for x
    x = 888,696,378,857.08/800,636.82
  6. Step 6: Final answer
    x = 1,109,986.90

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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.