Finding the Fourth Proportional to 1,207,522.19, 1,811,512.92 and 408,589.22
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Solution
The fourth proportional to 1,207,522.19, 1,811,512.92 and 408,589.22 is: 612,961.53
Step by Step Solution
- Step 1: Write the proportion equation
1,207,522.19 : 1,811,512.92 = 408,589.22 : x - Step 2: Convert to fraction form
1,207,522.19/1,811,512.92 = 408,589.22/x - Step 3: Cross multiply
1,207,522.19x = 1,811,512.92 × 408,589.22 - Step 4: Simplify right side
1,207,522.19x = 740,164,655,531.51 - Step 5: Solve for x
x = 740,164,655,531.51/1,207,522.19 - Step 6: Final answer
x = 612,961.53
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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.