Home / 1,279,039.88-1,764,907.52-762,854.36

Finding the Fourth Proportional to 1,279,039.88, 1,764,907.52 and 762,854.36

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Solution

The fourth proportional to 1,279,039.88, 1,764,907.52 and 762,854.36 is: 1,052,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,039.88 : 1,764,907.52 = 762,854.36 : x
  2. Step 2: Convert to fraction form
    1,279,039.88/1,764,907.52 = 762,854.36/x
  3. Step 3: Cross multiply
    1,279,039.88x = 1,764,907.52 × 762,854.36
  4. Step 4: Simplify right side
    1,279,039.88x = 1,346,367,383,989.98
  5. Step 5: Solve for x
    x = 1,346,367,383,989.98/1,279,039.88
  6. Step 6: Final answer
    x = 1,052,639.10

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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.