Finding the Fourth Proportional to 669,136.79, 923,409.66 and 363,212.97
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Solution
The fourth proportional to 669,136.79, 923,409.66 and 363,212.97 is: 501,234.39
Step by Step Solution
- Step 1: Write the proportion equation
669,136.79 : 923,409.66 = 363,212.97 : x - Step 2: Convert to fraction form
669,136.79/923,409.66 = 363,212.97/x - Step 3: Cross multiply
669,136.79x = 923,409.66 × 363,212.97 - Step 4: Simplify right side
669,136.79x = 335,394,365,135.29 - Step 5: Solve for x
x = 335,394,365,135.29/669,136.79 - Step 6: Final answer
x = 501,234.39
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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.