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Finding the Fourth Proportional to 2,104,892.78, 2,904,751.26 and 1,138,022.78

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Solution

The fourth proportional to 2,104,892.78, 2,904,751.26 and 1,138,022.78 is: 1,570,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104,892.78 : 2,904,751.26 = 1,138,022.78 : x
  2. Step 2: Convert to fraction form
    2,104,892.78/2,904,751.26 = 1,138,022.78/x
  3. Step 3: Cross multiply
    2,104,892.78x = 2,904,751.26 × 1,138,022.78
  4. Step 4: Simplify right side
    2,104,892.78x = 3,305,673,104,113.70
  5. Step 5: Solve for x
    x = 3,305,673,104,113.70/2,104,892.78
  6. Step 6: Final answer
    x = 1,570,471.02

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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.