Finding the Fourth Proportional to 681,163.88, 940,006.17 and 379,357.88
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Solution
The fourth proportional to 681,163.88, 940,006.17 and 379,357.88 is: 523,513.88
Step by Step Solution
- Step 1: Write the proportion equation
681,163.88 : 940,006.17 = 379,357.88 : x - Step 2: Convert to fraction form
681,163.88/940,006.17 = 379,357.88/x - Step 3: Cross multiply
681,163.88x = 940,006.17 × 379,357.88 - Step 4: Simplify right side
681,163.88x = 356,598,743,138.09 - Step 5: Solve for x
x = 356,598,743,138.09/681,163.88 - Step 6: Final answer
x = 523,513.88
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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.