Home / 2,099,413.70-3,149,620.23-679,469.78

Finding the Fourth Proportional to 2,099,413.70, 3,149,620.23 and 679,469.78

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Solution

The fourth proportional to 2,099,413.70, 3,149,620.23 and 679,469.78 is: 1,019,366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,413.70 : 3,149,620.23 = 679,469.78 : x
  2. Step 2: Convert to fraction form
    2,099,413.70/3,149,620.23 = 679,469.78/x
  3. Step 3: Cross multiply
    2,099,413.70x = 3,149,620.23 × 679,469.78
  4. Step 4: Simplify right side
    2,099,413.70x = 2,140,071,764,761.65
  5. Step 5: Solve for x
    x = 2,140,071,764,761.65/2,099,413.70
  6. Step 6: Final answer
    x = 1,019,366.39

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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.