Home / 664,573.10-996,811.26-259,689.47

Finding the Fourth Proportional to 664,573.10, 996,811.26 and 259,689.47

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Solution

The fourth proportional to 664,573.10, 996,811.26 and 259,689.47 is: 389,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,573.10 : 996,811.26 = 259,689.47 : x
  2. Step 2: Convert to fraction form
    664,573.10/996,811.26 = 259,689.47/x
  3. Step 3: Cross multiply
    664,573.10x = 996,811.26 × 259,689.47
  4. Step 4: Simplify right side
    664,573.10x = 258,861,382,815.38
  5. Step 5: Solve for x
    x = 258,861,382,815.38/664,573.10
  6. Step 6: Final answer
    x = 389,515.29

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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.