Home / 1,267,638-1,901,460.22-321,008.80

Finding the Fourth Proportional to 1,267,638, 1,901,460.22 and 321,008.80

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Solution

The fourth proportional to 1,267,638, 1,901,460.22 and 321,008.80 is: 481,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,638 : 1,901,460.22 = 321,008.80 : x
  2. Step 2: Convert to fraction form
    1,267,638/1,901,460.22 = 321,008.80/x
  3. Step 3: Cross multiply
    1,267,638x = 1,901,460.22 × 321,008.80
  4. Step 4: Simplify right side
    1,267,638x = 610,385,463,469.94
  5. Step 5: Solve for x
    x = 610,385,463,469.94/1,267,638
  6. Step 6: Final answer
    x = 481,514.02

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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.