Finding the Fourth Proportional to 489,841.98, 675,935.70 and 274,940.06
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Solution
The fourth proportional to 489,841.98, 675,935.70 and 274,940.06 is: 379,391.33
Step by Step Solution
- Step 1: Write the proportion equation
489,841.98 : 675,935.70 = 274,940.06 : x - Step 2: Convert to fraction form
489,841.98/675,935.70 = 274,940.06/x - Step 3: Cross multiply
489,841.98x = 675,935.70 × 274,940.06 - Step 4: Simplify right side
489,841.98x = 185,841,801,914.14 - Step 5: Solve for x
x = 185,841,801,914.14/489,841.98 - Step 6: Final answer
x = 379,391.33
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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.