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Finding the Fourth Proportional to 2,632,993, 3,949,502.46 and 638,449

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Solution

The fourth proportional to 2,632,993, 3,949,502.46 and 638,449 is: 957,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632,993 : 3,949,502.46 = 638,449 : x
  2. Step 2: Convert to fraction form
    2,632,993/3,949,502.46 = 638,449/x
  3. Step 3: Cross multiply
    2,632,993x = 3,949,502.46 × 638,449
  4. Step 4: Simplify right side
    2,632,993x = 2,521,555,896,084.54
  5. Step 5: Solve for x
    x = 2,521,555,896,084.54/2,632,993
  6. Step 6: Final answer
    x = 957,676.64

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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.