Home / 2,987,378.43-4,481,060.80-1,280,414.91

Finding the Fourth Proportional to 2,987,378.43, 4,481,060.80 and 1,280,414.91

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Solution

The fourth proportional to 2,987,378.43, 4,481,060.80 and 1,280,414.91 is: 1,920,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,378.43 : 4,481,060.80 = 1,280,414.91 : x
  2. Step 2: Convert to fraction form
    2,987,378.43/4,481,060.80 = 1,280,414.91/x
  3. Step 3: Cross multiply
    2,987,378.43x = 4,481,060.80 × 1,280,414.91
  4. Step 4: Simplify right side
    2,987,378.43x = 5,737,617,060,936.53
  5. Step 5: Solve for x
    x = 5,737,617,060,936.53/2,987,378.43
  6. Step 6: Final answer
    x = 1,920,619.43

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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.