Home / 671,845.40-1,007,761.79-272,391.20

Finding the Fourth Proportional to 671,845.40, 1,007,761.79 and 272,391.20

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Solution

The fourth proportional to 671,845.40, 1,007,761.79 and 272,391.20 is: 408,584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,845.40 : 1,007,761.79 = 272,391.20 : x
  2. Step 2: Convert to fraction form
    671,845.40/1,007,761.79 = 272,391.20/x
  3. Step 3: Cross multiply
    671,845.40x = 1,007,761.79 × 272,391.20
  4. Step 4: Simplify right side
    671,845.40x = 274,505,436,891.48
  5. Step 5: Solve for x
    x = 274,505,436,891.48/671,845.40
  6. Step 6: Final answer
    x = 408,584.24

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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.