Home / 775,290.51-1,162,921.19-422,549.28

Finding the Fourth Proportional to 775,290.51, 1,162,921.19 and 422,549.28

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Solution

The fourth proportional to 775,290.51, 1,162,921.19 and 422,549.28 is: 633,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,290.51 : 1,162,921.19 = 422,549.28 : x
  2. Step 2: Convert to fraction form
    775,290.51/1,162,921.19 = 422,549.28/x
  3. Step 3: Cross multiply
    775,290.51x = 1,162,921.19 × 422,549.28
  4. Step 4: Simplify right side
    775,290.51x = 491,391,509,418.50
  5. Step 5: Solve for x
    x = 491,391,509,418.50/775,290.51
  6. Step 6: Final answer
    x = 633,815.97

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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.