Finding the Fourth Proportional to 491,131.05, 677,790.50 and 276,285.03
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Solution
The fourth proportional to 491,131.05, 677,790.50 and 276,285.03 is: 381,290.02
Step by Step Solution
- Step 1: Write the proportion equation
491,131.05 : 677,790.50 = 276,285.03 : x - Step 2: Convert to fraction form
491,131.05/677,790.50 = 276,285.03/x - Step 3: Cross multiply
491,131.05x = 677,790.50 × 276,285.03 - Step 4: Simplify right side
491,131.05x = 187,263,367,244.79 - Step 5: Solve for x
x = 187,263,367,244.79/491,131.05 - Step 6: Final answer
x = 381,290.02
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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.