Home / 2,681,161.78-3,699,783.30-1,578,418.06

Finding the Fourth Proportional to 2,681,161.78, 3,699,783.30 and 1,578,418.06

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Solution

The fourth proportional to 2,681,161.78, 3,699,783.30 and 1,578,418.06 is: 2,178,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,161.78 : 3,699,783.30 = 1,578,418.06 : x
  2. Step 2: Convert to fraction form
    2,681,161.78/3,699,783.30 = 1,578,418.06/x
  3. Step 3: Cross multiply
    2,681,161.78x = 3,699,783.30 × 1,578,418.06
  4. Step 4: Simplify right side
    2,681,161.78x = 5,839,804,778,806.40
  5. Step 5: Solve for x
    x = 5,839,804,778,806.40/2,681,161.78
  6. Step 6: Final answer
    x = 2,178,087.43

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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.