Finding the Fourth Proportional to 494,002.62, 681,714.70 and 279,138.17
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Solution
The fourth proportional to 494,002.62, 681,714.70 and 279,138.17 is: 385,205.64
Step by Step Solution
- Step 1: Write the proportion equation
494,002.62 : 681,714.70 = 279,138.17 : x - Step 2: Convert to fraction form
494,002.62/681,714.70 = 279,138.17/x - Step 3: Cross multiply
494,002.62x = 681,714.70 × 279,138.17 - Step 4: Simplify right side
494,002.62x = 190,292,594,826.54 - Step 5: Solve for x
x = 190,292,594,826.54/494,002.62 - Step 6: Final answer
x = 385,205.64
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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.