Home / 451,328.25-622,896.77-279,301.62

Finding the Fourth Proportional to 451,328.25, 622,896.77 and 279,301.62

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Solution

The fourth proportional to 451,328.25, 622,896.77 and 279,301.62 is: 385,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,328.25 : 622,896.77 = 279,301.62 : x
  2. Step 2: Convert to fraction form
    451,328.25/622,896.77 = 279,301.62/x
  3. Step 3: Cross multiply
    451,328.25x = 622,896.77 × 279,301.62
  4. Step 4: Simplify right side
    451,328.25x = 173,976,073,839.28
  5. Step 5: Solve for x
    x = 173,976,073,839.28/451,328.25
  6. Step 6: Final answer
    x = 385,475.71

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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.