Home / 3,529,485.12-5,280,867.60-2,090,940.78

Finding the Fourth Proportional to 3,529,485.12, 5,280,867.60 and 2,090,940.78

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Solution

The fourth proportional to 3,529,485.12, 5,280,867.60 and 2,090,940.78 is: 3,128,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529,485.12 : 5,280,867.60 = 2,090,940.78 : x
  2. Step 2: Convert to fraction form
    3,529,485.12/5,280,867.60 = 2,090,940.78/x
  3. Step 3: Cross multiply
    3,529,485.12x = 5,280,867.60 × 2,090,940.78
  4. Step 4: Simplify right side
    3,529,485.12x = 11,041,981,418,620.73
  5. Step 5: Solve for x
    x = 11,041,981,418,620.73/3,529,485.12
  6. Step 6: Final answer
    x = 3,128,496.38

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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.