Finding the Fourth Proportional to 378,524.14, 522,374.97 and 217,411.49
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Solution
The fourth proportional to 378,524.14, 522,374.97 and 217,411.49 is: 300,034.56
Step by Step Solution
- Step 1: Write the proportion equation
378,524.14 : 522,374.97 = 217,411.49 : x - Step 2: Convert to fraction form
378,524.14/522,374.97 = 217,411.49/x - Step 3: Cross multiply
378,524.14x = 522,374.97 × 217,411.49 - Step 4: Simplify right side
378,524.14x = 113,570,322,687.64 - Step 5: Solve for x
x = 113,570,322,687.64/378,524.14 - Step 6: Final answer
x = 300,034.56
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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.