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Finding the Fourth Proportional to 443,222.91, 663,879.43 and 300,283.96

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Solution

The fourth proportional to 443,222.91, 663,879.43 and 300,283.96 is: 449,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,222.91 : 663,879.43 = 300,283.96 : x
  2. Step 2: Convert to fraction form
    443,222.91/663,879.43 = 300,283.96/x
  3. Step 3: Cross multiply
    443,222.91x = 663,879.43 × 300,283.96
  4. Step 4: Simplify right side
    443,222.91x = 199,352,344,202.94
  5. Step 5: Solve for x
    x = 199,352,344,202.94/443,222.91
  6. Step 6: Final answer
    x = 449,778.97

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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.