Home / 3,818,605.20-5,727,778.20-978,745.20

Finding the Fourth Proportional to 3,818,605.20, 5,727,778.20 and 978,745.20

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Solution

The fourth proportional to 3,818,605.20, 5,727,778.20 and 978,745.20 is: 1,468,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,605.20 : 5,727,778.20 = 978,745.20 : x
  2. Step 2: Convert to fraction form
    3,818,605.20/5,727,778.20 = 978,745.20/x
  3. Step 3: Cross multiply
    3,818,605.20x = 5,727,778.20 × 978,745.20
  4. Step 4: Simplify right side
    3,818,605.20x = 5,606,035,419,914.64
  5. Step 5: Solve for x
    x = 5,606,035,419,914.64/3,818,605.20
  6. Step 6: Final answer
    x = 1,468,084.58

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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.