Finding the Fourth Proportional to 355,657.59, 491,286.74 and 284,546.07
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Solution
The fourth proportional to 355,657.59, 491,286.74 and 284,546.07 is: 393,057.01
Step by Step Solution
- Step 1: Write the proportion equation
355,657.59 : 491,286.74 = 284,546.07 : x - Step 2: Convert to fraction form
355,657.59/491,286.74 = 284,546.07/x - Step 3: Cross multiply
355,657.59x = 491,286.74 × 284,546.07 - Step 4: Simplify right side
355,657.59x = 139,793,709,687.38 - Step 5: Solve for x
x = 139,793,709,687.38/355,657.59 - Step 6: Final answer
x = 393,057.01
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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.