Home / 2,078,558.73-2,868,653.05-1,729,081.78

Finding the Fourth Proportional to 2,078,558.73, 2,868,653.05 and 1,729,081.78

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Solution

The fourth proportional to 2,078,558.73, 2,868,653.05 and 1,729,081.78 is: 2,386,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,558.73 : 2,868,653.05 = 1,729,081.78 : x
  2. Step 2: Convert to fraction form
    2,078,558.73/2,868,653.05 = 1,729,081.78/x
  3. Step 3: Cross multiply
    2,078,558.73x = 2,868,653.05 × 1,729,081.78
  4. Step 4: Simplify right side
    2,078,558.73x = 4,960,135,721,896.43
  5. Step 5: Solve for x
    x = 4,960,135,721,896.43/2,078,558.73
  6. Step 6: Final answer
    x = 2,386,334.17

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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.