Finding the Fourth Proportional to 719,391.88, 992,755.20 and 397,102.08
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Solution
The fourth proportional to 719,391.88, 992,755.20 and 397,102.08 is: 547,997.78
Step by Step Solution
- Step 1: Write the proportion equation
719,391.88 : 992,755.20 = 397,102.08 : x - Step 2: Convert to fraction form
719,391.88/992,755.20 = 397,102.08/x - Step 3: Cross multiply
719,391.88x = 992,755.20 × 397,102.08 - Step 4: Simplify right side
719,391.88x = 394,225,154,850.82 - Step 5: Solve for x
x = 394,225,154,850.82/719,391.88 - Step 6: Final answer
x = 547,997.78
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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.