Home / 2,871,484.20-4,306,934.70-978,198.30

Finding the Fourth Proportional to 2,871,484.20, 4,306,934.70 and 978,198.30

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Solution

The fourth proportional to 2,871,484.20, 4,306,934.70 and 978,198.30 is: 1,467,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,484.20 : 4,306,934.70 = 978,198.30 : x
  2. Step 2: Convert to fraction form
    2,871,484.20/4,306,934.70 = 978,198.30/x
  3. Step 3: Cross multiply
    2,871,484.20x = 4,306,934.70 × 978,198.30
  4. Step 4: Simplify right side
    2,871,484.20x = 4,213,036,201,751.01
  5. Step 5: Solve for x
    x = 4,213,036,201,751.01/2,871,484.20
  6. Step 6: Final answer
    x = 1,467,198.11

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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.