Finding the Fourth Proportional to 721,330.97, 1,082,213.09 and 215,908.44
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Solution
The fourth proportional to 721,330.97, 1,082,213.09 and 215,908.44 is: 323,927.50
Step by Step Solution
- Step 1: Write the proportion equation
721,330.97 : 1,082,213.09 = 215,908.44 : x - Step 2: Convert to fraction form
721,330.97/1,082,213.09 = 215,908.44/x - Step 3: Cross multiply
721,330.97x = 1,082,213.09 × 215,908.44 - Step 4: Simplify right side
721,330.97x = 233,658,938,929.94 - Step 5: Solve for x
x = 233,658,938,929.94/721,330.97 - Step 6: Final answer
x = 323,927.50
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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.