Home / 647,989.62-972,418.32-268,910.70

Finding the Fourth Proportional to 647,989.62, 972,418.32 and 268,910.70

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Solution

The fourth proportional to 647,989.62, 972,418.32 and 268,910.70 is: 403,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,989.62 : 972,418.32 = 268,910.70 : x
  2. Step 2: Convert to fraction form
    647,989.62/972,418.32 = 268,910.70/x
  3. Step 3: Cross multiply
    647,989.62x = 972,418.32 × 268,910.70
  4. Step 4: Simplify right side
    647,989.62x = 261,493,691,124.02
  5. Step 5: Solve for x
    x = 261,493,691,124.02/647,989.62
  6. Step 6: Final answer
    x = 403,546.11

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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.