Finding the Fourth Proportional to 728,694.09, 1,093,073.94 and 223,218.18
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Solution
The fourth proportional to 728,694.09, 1,093,073.94 and 223,218.18 is: 334,837.32
Step by Step Solution
- Step 1: Write the proportion equation
728,694.09 : 1,093,073.94 = 223,218.18 : x - Step 2: Convert to fraction form
728,694.09/1,093,073.94 = 223,218.18/x - Step 3: Cross multiply
728,694.09x = 1,093,073.94 × 223,218.18 - Step 4: Simplify right side
728,694.09x = 243,993,975,492.23 - Step 5: Solve for x
x = 243,993,975,492.23/728,694.09 - Step 6: Final answer
x = 334,837.32
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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.