Home / 1,279,879.74-1,766,222.12-699,102.72

Finding the Fourth Proportional to 1,279,879.74, 1,766,222.12 and 699,102.72

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Solution

The fourth proportional to 1,279,879.74, 1,766,222.12 and 699,102.72 is: 964,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,879.74 : 1,766,222.12 = 699,102.72 : x
  2. Step 2: Convert to fraction form
    1,279,879.74/1,766,222.12 = 699,102.72/x
  3. Step 3: Cross multiply
    1,279,879.74x = 1,766,222.12 × 699,102.72
  4. Step 4: Simplify right side
    1,279,879.74x = 1,234,770,684,720.65
  5. Step 5: Solve for x
    x = 1,234,770,684,720.65/1,279,879.74
  6. Step 6: Final answer
    x = 964,755.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.