Home / 2,165,420.28-2,988,243.82-1,198,529.81

Finding the Fourth Proportional to 2,165,420.28, 2,988,243.82 and 1,198,529.81

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Solution

The fourth proportional to 2,165,420.28, 2,988,243.82 and 1,198,529.81 is: 1,653,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,420.28 : 2,988,243.82 = 1,198,529.81 : x
  2. Step 2: Convert to fraction form
    2,165,420.28/2,988,243.82 = 1,198,529.81/x
  3. Step 3: Cross multiply
    2,165,420.28x = 2,988,243.82 × 1,198,529.81
  4. Step 4: Simplify right side
    2,165,420.28x = 3,581,499,315,760.87
  5. Step 5: Solve for x
    x = 3,581,499,315,760.87/2,165,420.28
  6. Step 6: Final answer
    x = 1,653,951.13

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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.