Home / 2,718,922.88-4,078,390.80-825,678.56

Finding the Fourth Proportional to 2,718,922.88, 4,078,390.80 and 825,678.56

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Solution

The fourth proportional to 2,718,922.88, 4,078,390.80 and 825,678.56 is: 1,238,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,922.88 : 4,078,390.80 = 825,678.56 : x
  2. Step 2: Convert to fraction form
    2,718,922.88/4,078,390.80 = 825,678.56/x
  3. Step 3: Cross multiply
    2,718,922.88x = 4,078,390.80 × 825,678.56
  4. Step 4: Simplify right side
    2,718,922.88x = 3,367,439,842,861.25
  5. Step 5: Solve for x
    x = 3,367,439,842,861.25/2,718,922.88
  6. Step 6: Final answer
    x = 1,238,519.81

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Why These Related Problems?

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