Home / 2,586,431.85-3,879,647.82-789,324.54

Finding the Fourth Proportional to 2,586,431.85, 3,879,647.82 and 789,324.54

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Solution

The fourth proportional to 2,586,431.85, 3,879,647.82 and 789,324.54 is: 1,183,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586,431.85 : 3,879,647.82 = 789,324.54 : x
  2. Step 2: Convert to fraction form
    2,586,431.85/3,879,647.82 = 789,324.54/x
  3. Step 3: Cross multiply
    2,586,431.85x = 3,879,647.82 × 789,324.54
  4. Step 4: Simplify right side
    2,586,431.85x = 3,062,301,230,883.50
  5. Step 5: Solve for x
    x = 3,062,301,230,883.50/2,586,431.85
  6. Step 6: Final answer
    x = 1,183,986.82

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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.