Home / 1,427,269.69-1,969,634.75-782,694.50

Finding the Fourth Proportional to 1,427,269.69, 1,969,634.75 and 782,694.50

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Solution

The fourth proportional to 1,427,269.69, 1,969,634.75 and 782,694.50 is: 1,080,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,269.69 : 1,969,634.75 = 782,694.50 : x
  2. Step 2: Convert to fraction form
    1,427,269.69/1,969,634.75 = 782,694.50/x
  3. Step 3: Cross multiply
    1,427,269.69x = 1,969,634.75 × 782,694.50
  4. Step 4: Simplify right side
    1,427,269.69x = 1,541,622,278,676.21
  5. Step 5: Solve for x
    x = 1,541,622,278,676.21/1,427,269.69
  6. Step 6: Final answer
    x = 1,080,119.82

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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.