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Finding the Fourth Proportional to 800,872.81, 1,105,203.62 and 452,086.61

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Solution

The fourth proportional to 800,872.81, 1,105,203.62 and 452,086.61 is: 623,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,872.81 : 1,105,203.62 = 452,086.61 : x
  2. Step 2: Convert to fraction form
    800,872.81/1,105,203.62 = 452,086.61/x
  3. Step 3: Cross multiply
    800,872.81x = 1,105,203.62 × 452,086.61
  4. Step 4: Simplify right side
    800,872.81x = 499,647,753,529.73
  5. Step 5: Solve for x
    x = 499,647,753,529.73/800,872.81
  6. Step 6: Final answer
    x = 623,879.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.