Home / 2,628,319.86-3,942,453.51-831,203.64

Finding the Fourth Proportional to 2,628,319.86, 3,942,453.51 and 831,203.64

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Solution

The fourth proportional to 2,628,319.86, 3,942,453.51 and 831,203.64 is: 1,246,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,319.86 : 3,942,453.51 = 831,203.64 : x
  2. Step 2: Convert to fraction form
    2,628,319.86/3,942,453.51 = 831,203.64/x
  3. Step 3: Cross multiply
    2,628,319.86x = 3,942,453.51 × 831,203.64
  4. Step 4: Simplify right side
    2,628,319.86x = 3,276,981,686,252.50
  5. Step 5: Solve for x
    x = 3,276,981,686,252.50/2,628,319.86
  6. Step 6: Final answer
    x = 1,246,797.14

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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.