Home / 2,165,241.28-2,988,039.36-1,198,438.72

Finding the Fourth Proportional to 2,165,241.28, 2,988,039.36 and 1,198,438.72

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Solution

The fourth proportional to 2,165,241.28, 2,988,039.36 and 1,198,438.72 is: 1,653,848.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,241.28 : 2,988,039.36 = 1,198,438.72 : x
  2. Step 2: Convert to fraction form
    2,165,241.28/2,988,039.36 = 1,198,438.72/x
  3. Step 3: Cross multiply
    2,165,241.28x = 2,988,039.36 × 1,198,438.72
  4. Step 4: Simplify right side
    2,165,241.28x = 3,580,982,065,908.02
  5. Step 5: Solve for x
    x = 3,580,982,065,908.02/2,165,241.28
  6. Step 6: Final answer
    x = 1,653,848.97

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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.