Home / 3,119,795.82-4,676,704.20-1,320,203.76

Finding the Fourth Proportional to 3,119,795.82, 4,676,704.20 and 1,320,203.76

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Solution

The fourth proportional to 3,119,795.82, 4,676,704.20 and 1,320,203.76 is: 1,979,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,795.82 : 4,676,704.20 = 1,320,203.76 : x
  2. Step 2: Convert to fraction form
    3,119,795.82/4,676,704.20 = 1,320,203.76/x
  3. Step 3: Cross multiply
    3,119,795.82x = 4,676,704.20 × 1,320,203.76
  4. Step 4: Simplify right side
    3,119,795.82x = 6,174,202,469,247.79
  5. Step 5: Solve for x
    x = 6,174,202,469,247.79/3,119,795.82
  6. Step 6: Final answer
    x = 1,979,040.56

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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.