Finding the Fourth Proportional to 494,268.48, 682,163.37 and 312,996.96
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Solution
The fourth proportional to 494,268.48, 682,163.37 and 312,996.96 is: 431,981.95
Step by Step Solution
- Step 1: Write the proportion equation
494,268.48 : 682,163.37 = 312,996.96 : x - Step 2: Convert to fraction form
494,268.48/682,163.37 = 312,996.96/x - Step 3: Cross multiply
494,268.48x = 682,163.37 × 312,996.96 - Step 4: Simplify right side
494,268.48x = 213,515,061,033.36 - Step 5: Solve for x
x = 213,515,061,033.36/494,268.48 - Step 6: Final answer
x = 431,981.95
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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.