Finding the Fourth Proportional to 396,680.80, 547,418.88 and 217,832.80
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Solution
The fourth proportional to 396,680.80, 547,418.88 and 217,832.80 is: 300,608.92
Step by Step Solution
- Step 1: Write the proportion equation
396,680.80 : 547,418.88 = 217,832.80 : x - Step 2: Convert to fraction form
396,680.80/547,418.88 = 217,832.80/x - Step 3: Cross multiply
396,680.80x = 547,418.88 × 217,832.80 - Step 4: Simplify right side
396,680.80x = 119,245,787,403.26 - Step 5: Solve for x
x = 119,245,787,403.26/396,680.80 - Step 6: Final answer
x = 300,608.92
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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.