Finding the Fourth Proportional to 669,685.92, 923,906.09 and 379,230.80
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Solution
The fourth proportional to 669,685.92, 923,906.09 and 379,230.80 is: 523,190.99
Step by Step Solution
- Step 1: Write the proportion equation
669,685.92 : 923,906.09 = 379,230.80 : x - Step 2: Convert to fraction form
669,685.92/923,906.09 = 379,230.80/x - Step 3: Cross multiply
669,685.92x = 923,906.09 × 379,230.80 - Step 4: Simplify right side
669,685.92x = 350,373,639,119.89 - Step 5: Solve for x
x = 350,373,639,119.89/669,685.92 - Step 6: Final answer
x = 523,190.99
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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.