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Finding the Fourth Proportional to 2,564,917.20, 3,846,468.60 and 881,629.20

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Solution

The fourth proportional to 2,564,917.20, 3,846,468.60 and 881,629.20 is: 1,322,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564,917.20 : 3,846,468.60 = 881,629.20 : x
  2. Step 2: Convert to fraction form
    2,564,917.20/3,846,468.60 = 881,629.20/x
  3. Step 3: Cross multiply
    2,564,917.20x = 3,846,468.60 × 881,629.20
  4. Step 4: Simplify right side
    2,564,917.20x = 3,391,159,034,643.12
  5. Step 5: Solve for x
    x = 3,391,159,034,643.12/2,564,917.20
  6. Step 6: Final answer
    x = 1,322,131.97

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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.