Finding the Fourth Proportional to 489,724.61, 675,786.99 and 271,922.09
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Solution
The fourth proportional to 489,724.61, 675,786.99 and 271,922.09 is: 375,234.18
Step by Step Solution
- Step 1: Write the proportion equation
489,724.61 : 675,786.99 = 271,922.09 : x - Step 2: Convert to fraction form
489,724.61/675,786.99 = 271,922.09/x - Step 3: Cross multiply
489,724.61x = 675,786.99 × 271,922.09 - Step 4: Simplify right side
489,724.61x = 183,761,410,715.61 - Step 5: Solve for x
x = 183,761,410,715.61/489,724.61 - Step 6: Final answer
x = 375,234.18
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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.