Home / 3,437,789.87-4,743,872.30-1,987,578.79

Finding the Fourth Proportional to 3,437,789.87, 4,743,872.30 and 1,987,578.79

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Solution

The fourth proportional to 3,437,789.87, 4,743,872.30 and 1,987,578.79 is: 2,742,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437,789.87 : 4,743,872.30 = 1,987,578.79 : x
  2. Step 2: Convert to fraction form
    3,437,789.87/4,743,872.30 = 1,987,578.79/x
  3. Step 3: Cross multiply
    3,437,789.87x = 4,743,872.30 × 1,987,578.79
  4. Step 4: Simplify right side
    3,437,789.87x = 9,428,819,959,057.78
  5. Step 5: Solve for x
    x = 9,428,819,959,057.78/3,437,789.87
  6. Step 6: Final answer
    x = 2,742,698.16

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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.