Finding the Fourth Proportional to 491,067.29, 677,617.97 and 276,202.73
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Solution
The fourth proportional to 491,067.29, 677,617.97 and 276,202.73 is: 381,128.89
Step by Step Solution
- Step 1: Write the proportion equation
491,067.29 : 677,617.97 = 276,202.73 : x - Step 2: Convert to fraction form
491,067.29/677,617.97 = 276,202.73/x - Step 3: Cross multiply
491,067.29x = 677,617.97 × 276,202.73 - Step 4: Simplify right side
491,067.29x = 187,159,928,441.96 - Step 5: Solve for x
x = 187,159,928,441.96/491,067.29 - Step 6: Final answer
x = 381,128.89
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1.5x scale
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.