Home / 2,661,255.12-3,991,882.27-639,499.05

Finding the Fourth Proportional to 2,661,255.12, 3,991,882.27 and 639,499.05

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Solution

The fourth proportional to 2,661,255.12, 3,991,882.27 and 639,499.05 is: 959,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,255.12 : 3,991,882.27 = 639,499.05 : x
  2. Step 2: Convert to fraction form
    2,661,255.12/3,991,882.27 = 639,499.05/x
  3. Step 3: Cross multiply
    2,661,255.12x = 3,991,882.27 × 639,499.05
  4. Step 4: Simplify right side
    2,661,255.12x = 2,552,804,896,219.94
  5. Step 5: Solve for x
    x = 2,552,804,896,219.94/2,661,255.12
  6. Step 6: Final answer
    x = 959,248.47

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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.