Home / 2,987,418.52-4,481,120.94-1,280,455

Finding the Fourth Proportional to 2,987,418.52, 4,481,120.94 and 1,280,455

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Solution

The fourth proportional to 2,987,418.52, 4,481,120.94 and 1,280,455 is: 1,920,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,418.52 : 4,481,120.94 = 1,280,455 : x
  2. Step 2: Convert to fraction form
    2,987,418.52/4,481,120.94 = 1,280,455/x
  3. Step 3: Cross multiply
    2,987,418.52x = 4,481,120.94 × 1,280,455
  4. Step 4: Simplify right side
    2,987,418.52x = 5,737,873,713,227.70
  5. Step 5: Solve for x
    x = 5,737,873,713,227.70/2,987,418.52
  6. Step 6: Final answer
    x = 1,920,679.57

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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.