Home / 2,628,403.68-3,942,826.78-831,247.22

Finding the Fourth Proportional to 2,628,403.68, 3,942,826.78 and 831,247.22

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Solution

The fourth proportional to 2,628,403.68, 3,942,826.78 and 831,247.22 is: 1,246,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,403.68 : 3,942,826.78 = 831,247.22 : x
  2. Step 2: Convert to fraction form
    2,628,403.68/3,942,826.78 = 831,247.22/x
  3. Step 3: Cross multiply
    2,628,403.68x = 3,942,826.78 × 831,247.22
  4. Step 4: Simplify right side
    2,628,403.68x = 3,277,463,799,816.55
  5. Step 5: Solve for x
    x = 3,277,463,799,816.55/2,628,403.68
  6. Step 6: Final answer
    x = 1,246,940.80

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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.