Home / 3,818,021.20-5,726,900.04-978,161.20

Finding the Fourth Proportional to 3,818,021.20, 5,726,900.04 and 978,161.20

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Solution

The fourth proportional to 3,818,021.20, 5,726,900.04 and 978,161.20 is: 1,467,208.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,021.20 : 5,726,900.04 = 978,161.20 : x
  2. Step 2: Convert to fraction form
    3,818,021.20/5,726,900.04 = 978,161.20/x
  3. Step 3: Cross multiply
    3,818,021.20x = 5,726,900.04 × 978,161.20
  4. Step 4: Simplify right side
    3,818,021.20x = 5,601,831,415,406.45
  5. Step 5: Solve for x
    x = 5,601,831,415,406.45/3,818,021.20
  6. Step 6: Final answer
    x = 1,467,208.04

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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.