Finding the Fourth Proportional to 503,372.16, 694,668.96 and 288,553.68
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Solution
The fourth proportional to 503,372.16, 694,668.96 and 288,553.68 is: 398,212.89
Step by Step Solution
- Step 1: Write the proportion equation
503,372.16 : 694,668.96 = 288,553.68 : x - Step 2: Convert to fraction form
503,372.16/694,668.96 = 288,553.68/x - Step 3: Cross multiply
503,372.16x = 694,668.96 × 288,553.68 - Step 4: Simplify right side
503,372.16x = 200,449,284,789.77 - Step 5: Solve for x
x = 200,449,284,789.77/503,372.16 - Step 6: Final answer
x = 398,212.89
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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.