Home / 1,116,478.22-1,540,991.43-681,043.10

Finding the Fourth Proportional to 1,116,478.22, 1,540,991.43 and 681,043.10

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Solution

The fourth proportional to 1,116,478.22, 1,540,991.43 and 681,043.10 is: 939,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,478.22 : 1,540,991.43 = 681,043.10 : x
  2. Step 2: Convert to fraction form
    1,116,478.22/1,540,991.43 = 681,043.10/x
  3. Step 3: Cross multiply
    1,116,478.22x = 1,540,991.43 × 681,043.10
  4. Step 4: Simplify right side
    1,116,478.22x = 1,049,481,572,855.68
  5. Step 5: Solve for x
    x = 1,049,481,572,855.68/1,116,478.22
  6. Step 6: Final answer
    x = 939,992.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.