Home / 867,629.20-1,301,443.80-762,653.20

Finding the Fourth Proportional to 867,629.20, 1,301,443.80 and 762,653.20

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Solution

The fourth proportional to 867,629.20, 1,301,443.80 and 762,653.20 is: 1,143,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,629.20 : 1,301,443.80 = 762,653.20 : x
  2. Step 2: Convert to fraction form
    867,629.20/1,301,443.80 = 762,653.20/x
  3. Step 3: Cross multiply
    867,629.20x = 1,301,443.80 × 762,653.20
  4. Step 4: Simplify right side
    867,629.20x = 992,550,278,690.16
  5. Step 5: Solve for x
    x = 992,550,278,690.16/867,629.20
  6. Step 6: Final answer
    x = 1,143,979.80

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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.