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Finding the Fourth Proportional to 800,627.62, 1,203,822.13 and 738,211.33

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Solution

The fourth proportional to 800,627.62, 1,203,822.13 and 738,211.33 is: 1,109,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,627.62 : 1,203,822.13 = 738,211.33 : x
  2. Step 2: Convert to fraction form
    800,627.62/1,203,822.13 = 738,211.33/x
  3. Step 3: Cross multiply
    800,627.62x = 1,203,822.13 × 738,211.33
  4. Step 4: Simplify right side
    800,627.62x = 888,675,135,670.73
  5. Step 5: Solve for x
    x = 888,675,135,670.73/800,627.62
  6. Step 6: Final answer
    x = 1,109,973.12

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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.