Home / 2,871,489.20-4,306,942.20-978,203.30

Finding the Fourth Proportional to 2,871,489.20, 4,306,942.20 and 978,203.30

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Solution

The fourth proportional to 2,871,489.20, 4,306,942.20 and 978,203.30 is: 1,467,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,489.20 : 4,306,942.20 = 978,203.30 : x
  2. Step 2: Convert to fraction form
    2,871,489.20/4,306,942.20 = 978,203.30/x
  3. Step 3: Cross multiply
    2,871,489.20x = 4,306,942.20 × 978,203.30
  4. Step 4: Simplify right side
    2,871,489.20x = 4,213,065,072,949.26
  5. Step 5: Solve for x
    x = 4,213,065,072,949.26/2,871,489.20
  6. Step 6: Final answer
    x = 1,467,205.61

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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.