Finding the Fourth Proportional to 489,392.82, 675,393.12 and 274,546.80
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Solution
The fourth proportional to 489,392.82, 675,393.12 and 274,546.80 is: 378,891.99
Step by Step Solution
- Step 1: Write the proportion equation
489,392.82 : 675,393.12 = 274,546.80 : x - Step 2: Convert to fraction form
489,392.82/675,393.12 = 274,546.80/x - Step 3: Cross multiply
489,392.82x = 675,393.12 × 274,546.80 - Step 4: Simplify right side
489,392.82x = 185,427,019,838.02 - Step 5: Solve for x
x = 185,427,019,838.02/489,392.82 - Step 6: Final answer
x = 378,891.99
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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.