Finding the Fourth Proportional to 721,063.10, 1,080,831.93 and 271,589.49
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Solution
The fourth proportional to 721,063.10, 1,080,831.93 and 271,589.49 is: 407,096.96
Step by Step Solution
- Step 1: Write the proportion equation
721,063.10 : 1,080,831.93 = 271,589.49 : x - Step 2: Convert to fraction form
721,063.10/1,080,831.93 = 271,589.49/x - Step 3: Cross multiply
721,063.10x = 1,080,831.93 × 271,589.49 - Step 4: Simplify right side
721,063.10x = 293,542,592,644.42 - Step 5: Solve for x
x = 293,542,592,644.42/721,063.10 - Step 6: Final answer
x = 407,096.96
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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.