Home / 1,244,843.10-1,866,156.86-486,512.12

Finding the Fourth Proportional to 1,244,843.10, 1,866,156.86 and 486,512.12

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Solution

The fourth proportional to 1,244,843.10, 1,866,156.86 and 486,512.12 is: 729,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,843.10 : 1,866,156.86 = 486,512.12 : x
  2. Step 2: Convert to fraction form
    1,244,843.10/1,866,156.86 = 486,512.12/x
  3. Step 3: Cross multiply
    1,244,843.10x = 1,866,156.86 × 486,512.12
  4. Step 4: Simplify right side
    1,244,843.10x = 907,907,918,447.80
  5. Step 5: Solve for x
    x = 907,907,918,447.80/1,244,843.10
  6. Step 6: Final answer
    x = 729,335.22

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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.