Home / 642,826.50-964,247.98-443,093.28

Finding the Fourth Proportional to 642,826.50, 964,247.98 and 443,093.28

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Solution

The fourth proportional to 642,826.50, 964,247.98 and 443,093.28 is: 664,645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,826.50 : 964,247.98 = 443,093.28 : x
  2. Step 2: Convert to fraction form
    642,826.50/964,247.98 = 443,093.28/x
  3. Step 3: Cross multiply
    642,826.50x = 964,247.98 × 443,093.28
  4. Step 4: Simplify right side
    642,826.50x = 427,251,800,191.57
  5. Step 5: Solve for x
    x = 427,251,800,191.57/642,826.50
  6. Step 6: Final answer
    x = 664,645.59

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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.