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Finding the Fourth Proportional to 2,647,009.57, 3,968,578.64 and 848,869.51

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Solution

The fourth proportional to 2,647,009.57, 3,968,578.64 and 848,869.51 is: 1,272,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647,009.57 : 3,968,578.64 = 848,869.51 : x
  2. Step 2: Convert to fraction form
    2,647,009.57/3,968,578.64 = 848,869.51/x
  3. Step 3: Cross multiply
    2,647,009.57x = 3,968,578.64 × 848,869.51
  4. Step 4: Simplify right side
    2,647,009.57x = 3,368,805,401,288.92
  5. Step 5: Solve for x
    x = 3,368,805,401,288.92/2,647,009.57
  6. Step 6: Final answer
    x = 1,272,683.50

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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.