Home / 2,165,238.28-2,988,035.22-1,198,435.72

Finding the Fourth Proportional to 2,165,238.28, 2,988,035.22 and 1,198,435.72

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Solution

The fourth proportional to 2,165,238.28, 2,988,035.22 and 1,198,435.72 is: 1,653,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,238.28 : 2,988,035.22 = 1,198,435.72 : x
  2. Step 2: Convert to fraction form
    2,165,238.28/2,988,035.22 = 1,198,435.72/x
  3. Step 3: Cross multiply
    2,165,238.28x = 2,988,035.22 × 1,198,435.72
  4. Step 4: Simplify right side
    2,165,238.28x = 3,580,968,140,266.06
  5. Step 5: Solve for x
    x = 3,580,968,140,266.06/2,165,238.28
  6. Step 6: Final answer
    x = 1,653,844.83

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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.