Finding the Fourth Proportional to 379,546.29, 523,350.05 and 310,420.53
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Solution
The fourth proportional to 379,546.29, 523,350.05 and 310,420.53 is: 428,033.69
Step by Step Solution
- Step 1: Write the proportion equation
379,546.29 : 523,350.05 = 310,420.53 : x - Step 2: Convert to fraction form
379,546.29/523,350.05 = 310,420.53/x - Step 3: Cross multiply
379,546.29x = 523,350.05 × 310,420.53 - Step 4: Simplify right side
379,546.29x = 162,458,599,896.53 - Step 5: Solve for x
x = 162,458,599,896.53/379,546.29 - Step 6: Final answer
x = 428,033.69
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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.