Home / 2,800,098.40-4,202,221.20-1,118,408.80

Finding the Fourth Proportional to 2,800,098.40, 4,202,221.20 and 1,118,408.80

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Solution

The fourth proportional to 2,800,098.40, 4,202,221.20 and 1,118,408.80 is: 1,678,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,098.40 : 4,202,221.20 = 1,118,408.80 : x
  2. Step 2: Convert to fraction form
    2,800,098.40/4,202,221.20 = 1,118,408.80/x
  3. Step 3: Cross multiply
    2,800,098.40x = 4,202,221.20 × 1,118,408.80
  4. Step 4: Simplify right side
    2,800,098.40x = 4,699,801,169,626.56
  5. Step 5: Solve for x
    x = 4,699,801,169,626.56/2,800,098.40
  6. Step 6: Final answer
    x = 1,678,441.43

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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.