Home / 2,628,316.70-3,942,448.78-831,200.48

Finding the Fourth Proportional to 2,628,316.70, 3,942,448.78 and 831,200.48

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Solution

The fourth proportional to 2,628,316.70, 3,942,448.78 and 831,200.48 is: 1,246,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,316.70 : 3,942,448.78 = 831,200.48 : x
  2. Step 2: Convert to fraction form
    2,628,316.70/3,942,448.78 = 831,200.48/x
  3. Step 3: Cross multiply
    2,628,316.70x = 3,942,448.78 × 831,200.48
  4. Step 4: Simplify right side
    2,628,316.70x = 3,276,965,337,377.96
  5. Step 5: Solve for x
    x = 3,276,965,337,377.96/2,628,316.70
  6. Step 6: Final answer
    x = 1,246,792.42

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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.