Home / 2,228,213.78-3,074,972.37-1,209,618.50

Finding the Fourth Proportional to 2,228,213.78, 3,074,972.37 and 1,209,618.50

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Solution

The fourth proportional to 2,228,213.78, 3,074,972.37 and 1,209,618.50 is: 1,669,293.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228,213.78 : 3,074,972.37 = 1,209,618.50 : x
  2. Step 2: Convert to fraction form
    2,228,213.78/3,074,972.37 = 1,209,618.50/x
  3. Step 3: Cross multiply
    2,228,213.78x = 3,074,972.37 × 1,209,618.50
  4. Step 4: Simplify right side
    2,228,213.78x = 3,719,543,465,740.85
  5. Step 5: Solve for x
    x = 3,719,543,465,740.85/2,228,213.78
  6. Step 6: Final answer
    x = 1,669,293.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.