Home / 2,208,836.80-3,315,004.80-861,644.80

Finding the Fourth Proportional to 2,208,836.80, 3,315,004.80 and 861,644.80

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Solution

The fourth proportional to 2,208,836.80, 3,315,004.80 and 861,644.80 is: 1,293,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208,836.80 : 3,315,004.80 = 861,644.80 : x
  2. Step 2: Convert to fraction form
    2,208,836.80/3,315,004.80 = 861,644.80/x
  3. Step 3: Cross multiply
    2,208,836.80x = 3,315,004.80 × 861,644.80
  4. Step 4: Simplify right side
    2,208,836.80x = 2,856,356,647,895.04
  5. Step 5: Solve for x
    x = 2,856,356,647,895.04/2,208,836.80
  6. Step 6: Final answer
    x = 1,293,149.70

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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.