Home / 2,120,379.45-3,180,554.58-858,188.85

Finding the Fourth Proportional to 2,120,379.45, 3,180,554.58 and 858,188.85

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Solution

The fourth proportional to 2,120,379.45, 3,180,554.58 and 858,188.85 is: 1,287,277.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,379.45 : 3,180,554.58 = 858,188.85 : x
  2. Step 2: Convert to fraction form
    2,120,379.45/3,180,554.58 = 858,188.85/x
  3. Step 3: Cross multiply
    2,120,379.45x = 3,180,554.58 × 858,188.85
  4. Step 4: Simplify right side
    2,120,379.45x = 2,729,516,477,372.43
  5. Step 5: Solve for x
    x = 2,729,516,477,372.43/2,120,379.45
  6. Step 6: Final answer
    x = 1,287,277.37

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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.