Finding the Fourth Proportional to 494,286.91, 682,145.35 and 279,446.96
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Solution
The fourth proportional to 494,286.91, 682,145.35 and 279,446.96 is: 385,653.44
Step by Step Solution
- Step 1: Write the proportion equation
494,286.91 : 682,145.35 = 279,446.96 : x - Step 2: Convert to fraction form
494,286.91/682,145.35 = 279,446.96/x - Step 3: Cross multiply
494,286.91x = 682,145.35 × 279,446.96 - Step 4: Simplify right side
494,286.91x = 190,623,445,342.38 - Step 5: Solve for x
x = 190,623,445,342.38/494,286.91 - Step 6: Final answer
x = 385,653.44
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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.