Home / 2,871,512.20-4,306,976.70-978,226.30

Finding the Fourth Proportional to 2,871,512.20, 4,306,976.70 and 978,226.30

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Solution

The fourth proportional to 2,871,512.20, 4,306,976.70 and 978,226.30 is: 1,467,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,512.20 : 4,306,976.70 = 978,226.30 : x
  2. Step 2: Convert to fraction form
    2,871,512.20/4,306,976.70 = 978,226.30/x
  3. Step 3: Cross multiply
    2,871,512.20x = 4,306,976.70 × 978,226.30
  4. Step 4: Simplify right side
    2,871,512.20x = 4,213,197,881,427.21
  5. Step 5: Solve for x
    x = 4,213,197,881,427.21/2,871,512.20
  6. Step 6: Final answer
    x = 1,467,240.11

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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.