Home / 1,226,007.36-1,836,619.92-691,912.80

Finding the Fourth Proportional to 1,226,007.36, 1,836,619.92 and 691,912.80

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Solution

The fourth proportional to 1,226,007.36, 1,836,619.92 and 691,912.80 is: 1,036,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,007.36 : 1,836,619.92 = 691,912.80 : x
  2. Step 2: Convert to fraction form
    1,226,007.36/1,836,619.92 = 691,912.80/x
  3. Step 3: Cross multiply
    1,226,007.36x = 1,836,619.92 × 691,912.80
  4. Step 4: Simplify right side
    1,226,007.36x = 1,270,780,831,382.98
  5. Step 5: Solve for x
    x = 1,270,780,831,382.98/1,226,007.36
  6. Step 6: Final answer
    x = 1,036,519.74

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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.