Home / 1,809,834.86-2,715,102.21-687,816.38

Finding the Fourth Proportional to 1,809,834.86, 2,715,102.21 and 687,816.38

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Solution

The fourth proportional to 1,809,834.86, 2,715,102.21 and 687,816.38 is: 1,031,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,834.86 : 2,715,102.21 = 687,816.38 : x
  2. Step 2: Convert to fraction form
    1,809,834.86/2,715,102.21 = 687,816.38/x
  3. Step 3: Cross multiply
    1,809,834.86x = 2,715,102.21 × 687,816.38
  4. Step 4: Simplify right side
    1,809,834.86x = 1,867,491,759,836.69
  5. Step 5: Solve for x
    x = 1,867,491,759,836.69/1,809,834.86
  6. Step 6: Final answer
    x = 1,031,857.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.