Home / 1,245,555.20-1,718,993.16-762,439.60

Finding the Fourth Proportional to 1,245,555.20, 1,718,993.16 and 762,439.60

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Solution

The fourth proportional to 1,245,555.20, 1,718,993.16 and 762,439.60 is: 1,052,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,555.20 : 1,718,993.16 = 762,439.60 : x
  2. Step 2: Convert to fraction form
    1,245,555.20/1,718,993.16 = 762,439.60/x
  3. Step 3: Cross multiply
    1,245,555.20x = 1,718,993.16 × 762,439.60
  4. Step 4: Simplify right side
    1,245,555.20x = 1,310,628,457,313.14
  5. Step 5: Solve for x
    x = 1,310,628,457,313.14/1,245,555.20
  6. Step 6: Final answer
    x = 1,052,244.38

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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.