Finding the Fourth Proportional to 489,816.18, 675,894.42 and 274,979.88
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Solution
The fourth proportional to 489,816.18, 675,894.42 and 274,979.88 is: 379,443.09
Step by Step Solution
- Step 1: Write the proportion equation
489,816.18 : 675,894.42 = 274,979.88 : x - Step 2: Convert to fraction form
489,816.18/675,894.42 = 274,979.88/x - Step 3: Cross multiply
489,816.18x = 675,894.42 × 274,979.88 - Step 4: Simplify right side
489,816.18x = 185,857,366,504.27 - Step 5: Solve for x
x = 185,857,366,504.27/489,816.18 - Step 6: Final answer
x = 379,443.09
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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.