Home / 2,586,425.85-3,879,638.82-789,318.54

Finding the Fourth Proportional to 2,586,425.85, 3,879,638.82 and 789,318.54

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Solution

The fourth proportional to 2,586,425.85, 3,879,638.82 and 789,318.54 is: 1,183,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586,425.85 : 3,879,638.82 = 789,318.54 : x
  2. Step 2: Convert to fraction form
    2,586,425.85/3,879,638.82 = 789,318.54/x
  3. Step 3: Cross multiply
    2,586,425.85x = 3,879,638.82 × 789,318.54
  4. Step 4: Simplify right side
    2,586,425.85x = 3,062,270,849,129.72
  5. Step 5: Solve for x
    x = 3,062,270,849,129.72/2,586,425.85
  6. Step 6: Final answer
    x = 1,183,977.82

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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.