Home / 1,231,805.56-1,836,322.05-1,212,393.20

Finding the Fourth Proportional to 1,231,805.56, 1,836,322.05 and 1,212,393.20

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Solution

The fourth proportional to 1,231,805.56, 1,836,322.05 and 1,212,393.20 is: 1,807,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,805.56 : 1,836,322.05 = 1,212,393.20 : x
  2. Step 2: Convert to fraction form
    1,231,805.56/1,836,322.05 = 1,212,393.20/x
  3. Step 3: Cross multiply
    1,231,805.56x = 1,836,322.05 × 1,212,393.20
  4. Step 4: Simplify right side
    1,231,805.56x = 2,226,344,366,430.06
  5. Step 5: Solve for x
    x = 2,226,344,366,430.06/1,231,805.56
  6. Step 6: Final answer
    x = 1,807,382.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.