Home / 642,843.67-964,273.70-443,110.43

Finding the Fourth Proportional to 642,843.67, 964,273.70 and 443,110.43

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Solution

The fourth proportional to 642,843.67, 964,273.70 and 443,110.43 is: 664,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,843.67 : 964,273.70 = 443,110.43 : x
  2. Step 2: Convert to fraction form
    642,843.67/964,273.70 = 443,110.43/x
  3. Step 3: Cross multiply
    642,843.67x = 964,273.70 × 443,110.43
  4. Step 4: Simplify right side
    642,843.67x = 427,279,730,131.10
  5. Step 5: Solve for x
    x = 427,279,730,131.10/642,843.67
  6. Step 6: Final answer
    x = 664,671.29

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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.