Home / 1,201,874.34-1,800,219.60-1,131,212.28

Finding the Fourth Proportional to 1,201,874.34, 1,800,219.60 and 1,131,212.28

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Solution

The fourth proportional to 1,201,874.34, 1,800,219.60 and 1,131,212.28 is: 1,694,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,874.34 : 1,800,219.60 = 1,131,212.28 : x
  2. Step 2: Convert to fraction form
    1,201,874.34/1,800,219.60 = 1,131,212.28/x
  3. Step 3: Cross multiply
    1,201,874.34x = 1,800,219.60 × 1,131,212.28
  4. Step 4: Simplify right side
    1,201,874.34x = 2,036,430,518,216.69
  5. Step 5: Solve for x
    x = 2,036,430,518,216.69/1,201,874.34
  6. Step 6: Final answer
    x = 1,694,378.90

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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.