Finding the Fourth Proportional to 489,694.21, 675,843.95 and 274,846.03
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Solution
The fourth proportional to 489,694.21, 675,843.95 and 274,846.03 is: 379,324.53
Step by Step Solution
- Step 1: Write the proportion equation
489,694.21 : 675,843.95 = 274,846.03 : x - Step 2: Convert to fraction form
489,694.21/675,843.95 = 274,846.03/x - Step 3: Cross multiply
489,694.21x = 675,843.95 × 274,846.03 - Step 4: Simplify right side
489,694.21x = 185,753,025,554.52 - Step 5: Solve for x
x = 185,753,025,554.52/489,694.21 - Step 6: Final answer
x = 379,324.53
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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.