Home / 3,431,930.80-5,147,896.20-873,140.80

Finding the Fourth Proportional to 3,431,930.80, 5,147,896.20 and 873,140.80

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Solution

The fourth proportional to 3,431,930.80, 5,147,896.20 and 873,140.80 is: 1,309,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431,930.80 : 5,147,896.20 = 873,140.80 : x
  2. Step 2: Convert to fraction form
    3,431,930.80/5,147,896.20 = 873,140.80/x
  3. Step 3: Cross multiply
    3,431,930.80x = 5,147,896.20 × 873,140.80
  4. Step 4: Simplify right side
    3,431,930.80x = 4,494,838,206,384.96
  5. Step 5: Solve for x
    x = 4,494,838,206,384.96/3,431,930.80
  6. Step 6: Final answer
    x = 1,309,711.20

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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.