Home / 1,997,311.20-2,994,217.20-1,198,910.40

Finding the Fourth Proportional to 1,997,311.20, 2,994,217.20 and 1,198,910.40

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Solution

The fourth proportional to 1,997,311.20, 2,994,217.20 and 1,198,910.40 is: 1,797,315.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,311.20 : 2,994,217.20 = 1,198,910.40 : x
  2. Step 2: Convert to fraction form
    1,997,311.20/2,994,217.20 = 1,198,910.40/x
  3. Step 3: Cross multiply
    1,997,311.20x = 2,994,217.20 × 1,198,910.40
  4. Step 4: Simplify right side
    1,997,311.20x = 3,589,798,140,938.88
  5. Step 5: Solve for x
    x = 3,589,798,140,938.88/1,997,311.20
  6. Step 6: Final answer
    x = 1,797,315.38

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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.