Home / 2,628,942.80-3,944,112.84-831,858.20

Finding the Fourth Proportional to 2,628,942.80, 3,944,112.84 and 831,858.20

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Solution

The fourth proportional to 2,628,942.80, 3,944,112.84 and 831,858.20 is: 1,248,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,942.80 : 3,944,112.84 = 831,858.20 : x
  2. Step 2: Convert to fraction form
    2,628,942.80/3,944,112.84 = 831,858.20/x
  3. Step 3: Cross multiply
    2,628,942.80x = 3,944,112.84 × 831,858.20
  4. Step 4: Simplify right side
    2,628,942.80x = 3,280,942,607,679.29
  5. Step 5: Solve for x
    x = 3,280,942,607,679.29/2,628,942.80
  6. Step 6: Final answer
    x = 1,248,008.37

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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.