Finding the Fourth Proportional to 489,751.54, 675,820.05 and 274,850.09
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Solution
The fourth proportional to 489,751.54, 675,820.05 and 274,850.09 is: 379,272.31
Step by Step Solution
- Step 1: Write the proportion equation
489,751.54 : 675,820.05 = 274,850.09 : x - Step 2: Convert to fraction form
489,751.54/675,820.05 = 274,850.09/x - Step 3: Cross multiply
489,751.54x = 675,820.05 × 274,850.09 - Step 4: Simplify right side
489,751.54x = 185,749,198,273.23 - Step 5: Solve for x
x = 185,749,198,273.23/489,751.54 - Step 6: Final answer
x = 379,272.31
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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.