Home / 2,987,412.49-4,481,121.44-1,280,448.06

Finding the Fourth Proportional to 2,987,412.49, 4,481,121.44 and 1,280,448.06

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Solution

The fourth proportional to 2,987,412.49, 4,481,121.44 and 1,280,448.06 is: 1,920,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,412.49 : 4,481,121.44 = 1,280,448.06 : x
  2. Step 2: Convert to fraction form
    2,987,412.49/4,481,121.44 = 1,280,448.06/x
  3. Step 3: Cross multiply
    2,987,412.49x = 4,481,121.44 × 1,280,448.06
  4. Step 4: Simplify right side
    2,987,412.49x = 5,737,843,225,664.56
  5. Step 5: Solve for x
    x = 5,737,843,225,664.56/2,987,412.49
  6. Step 6: Final answer
    x = 1,920,673.24

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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.