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Finding the Fourth Proportional to 443,847.88, 665,939.56 and 266,478.54

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Solution

The fourth proportional to 443,847.88, 665,939.56 and 266,478.54 is: 399,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,847.88 : 665,939.56 = 266,478.54 : x
  2. Step 2: Convert to fraction form
    443,847.88/665,939.56 = 266,478.54/x
  3. Step 3: Cross multiply
    443,847.88x = 665,939.56 × 266,478.54
  4. Step 4: Simplify right side
    443,847.88x = 177,458,601,677.04
  5. Step 5: Solve for x
    x = 177,458,601,677.04/443,847.88
  6. Step 6: Final answer
    x = 399,818.52

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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.