Finding the Fourth Proportional to 378,584.44, 522,446.96 and 217,470.68
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Solution
The fourth proportional to 378,584.44, 522,446.96 and 217,470.68 is: 300,109.79
Step by Step Solution
- Step 1: Write the proportion equation
378,584.44 : 522,446.96 = 217,470.68 : x - Step 2: Convert to fraction form
378,584.44/522,446.96 = 217,470.68/x - Step 3: Cross multiply
378,584.44x = 522,446.96 × 217,470.68 - Step 4: Simplify right side
378,584.44x = 113,616,895,655.13 - Step 5: Solve for x
x = 113,616,895,655.13/378,584.44 - Step 6: Final answer
x = 300,109.79
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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.