Home / 2,760,408.40-4,140,742.20-867,211.60

Finding the Fourth Proportional to 2,760,408.40, 4,140,742.20 and 867,211.60

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Solution

The fourth proportional to 2,760,408.40, 4,140,742.20 and 867,211.60 is: 1,300,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760,408.40 : 4,140,742.20 = 867,211.60 : x
  2. Step 2: Convert to fraction form
    2,760,408.40/4,140,742.20 = 867,211.60/x
  3. Step 3: Cross multiply
    2,760,408.40x = 4,140,742.20 × 867,211.60
  4. Step 4: Simplify right side
    2,760,408.40x = 3,590,899,668,449.52
  5. Step 5: Solve for x
    x = 3,590,899,668,449.52/2,760,408.40
  6. Step 6: Final answer
    x = 1,300,858.12

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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.