Home / 2,165,241.78-2,988,040.05-1,198,439.22

Finding the Fourth Proportional to 2,165,241.78, 2,988,040.05 and 1,198,439.22

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Solution

The fourth proportional to 2,165,241.78, 2,988,040.05 and 1,198,439.22 is: 1,653,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,241.78 : 2,988,040.05 = 1,198,439.22 : x
  2. Step 2: Convert to fraction form
    2,165,241.78/2,988,040.05 = 1,198,439.22/x
  3. Step 3: Cross multiply
    2,165,241.78x = 2,988,040.05 × 1,198,439.22
  4. Step 4: Simplify right side
    2,165,241.78x = 3,580,984,386,850.76
  5. Step 5: Solve for x
    x = 3,580,984,386,850.76/2,165,241.78
  6. Step 6: Final answer
    x = 1,653,849.66

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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.