Finding the Fourth Proportional to 386,580.75, 579,638.07 and 173,310.09
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Solution
The fourth proportional to 386,580.75, 579,638.07 and 173,310.09 is: 259,860.65
Step by Step Solution
- Step 1: Write the proportion equation
386,580.75 : 579,638.07 = 173,310.09 : x - Step 2: Convert to fraction form
386,580.75/579,638.07 = 173,310.09/x - Step 3: Cross multiply
386,580.75x = 579,638.07 × 173,310.09 - Step 4: Simplify right side
386,580.75x = 100,457,126,079.13 - Step 5: Solve for x
x = 100,457,126,079.13/386,580.75 - Step 6: Final answer
x = 259,860.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.