Finding the Fourth Proportional to 488,431.62, 674,042.37 and 318,568.26
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Solution
The fourth proportional to 488,431.62, 674,042.37 and 318,568.26 is: 439,628.59
Step by Step Solution
- Step 1: Write the proportion equation
488,431.62 : 674,042.37 = 318,568.26 : x - Step 2: Convert to fraction form
488,431.62/674,042.37 = 318,568.26/x - Step 3: Cross multiply
488,431.62x = 674,042.37 × 318,568.26 - Step 4: Simplify right side
488,431.62x = 214,728,504,977.18 - Step 5: Solve for x
x = 214,728,504,977.18/488,431.62 - Step 6: Final answer
x = 439,628.59
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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.