Finding the Fourth Proportional to 326,619.27, 489,738.19 and 126,706.05
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Solution
The fourth proportional to 326,619.27, 489,738.19 and 126,706.05 is: 189,985.09
Step by Step Solution
- Step 1: Write the proportion equation
326,619.27 : 489,738.19 = 126,706.05 : x - Step 2: Convert to fraction form
326,619.27/489,738.19 = 126,706.05/x - Step 3: Cross multiply
326,619.27x = 489,738.19 × 126,706.05 - Step 4: Simplify right side
326,619.27x = 62,052,791,589.05 - Step 5: Solve for x
x = 62,052,791,589.05/326,619.27 - Step 6: Final answer
x = 189,985.09
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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.