Home / 2,586,426.85-3,879,640.32-789,319.54

Finding the Fourth Proportional to 2,586,426.85, 3,879,640.32 and 789,319.54

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Solution

The fourth proportional to 2,586,426.85, 3,879,640.32 and 789,319.54 is: 1,183,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586,426.85 : 3,879,640.32 = 789,319.54 : x
  2. Step 2: Convert to fraction form
    2,586,426.85/3,879,640.32 = 789,319.54/x
  3. Step 3: Cross multiply
    2,586,426.85x = 3,879,640.32 × 789,319.54
  4. Step 4: Simplify right side
    2,586,426.85x = 3,062,275,912,747.85
  5. Step 5: Solve for x
    x = 3,062,275,912,747.85/2,586,426.85
  6. Step 6: Final answer
    x = 1,183,979.32

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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.