Finding the Fourth Proportional to 491,596.83, 678,377.84 and 276,729.75
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Solution
The fourth proportional to 491,596.83, 678,377.84 and 276,729.75 is: 381,872.54
Step by Step Solution
- Step 1: Write the proportion equation
491,596.83 : 678,377.84 = 276,729.75 : x - Step 2: Convert to fraction form
491,596.83/678,377.84 = 276,729.75/x - Step 3: Cross multiply
491,596.83x = 678,377.84 × 276,729.75 - Step 4: Simplify right side
491,596.83x = 187,727,328,685.09 - Step 5: Solve for x
x = 187,727,328,685.09/491,596.83 - Step 6: Final answer
x = 381,872.54
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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.