Finding the Fourth Proportional to 721,522.24, 1,081,446.84 and 271,955.24
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Solution
The fourth proportional to 721,522.24, 1,081,446.84 and 271,955.24 is: 407,617.56
Step by Step Solution
- Step 1: Write the proportion equation
721,522.24 : 1,081,446.84 = 271,955.24 : x - Step 2: Convert to fraction form
721,522.24/1,081,446.84 = 271,955.24/x - Step 3: Cross multiply
721,522.24x = 1,081,446.84 × 271,955.24 - Step 4: Simplify right side
721,522.24x = 294,105,134,919.44 - Step 5: Solve for x
x = 294,105,134,919.44/721,522.24 - Step 6: Final answer
x = 407,617.56
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1.5x scale
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.