Finding the Fourth Proportional to 721,441.98, 1,082,151.99 and 248,131.44
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Solution
The fourth proportional to 721,441.98, 1,082,151.99 and 248,131.44 is: 372,193.38
Step by Step Solution
- Step 1: Write the proportion equation
721,441.98 : 1,082,151.99 = 248,131.44 : x - Step 2: Convert to fraction form
721,441.98/1,082,151.99 = 248,131.44/x - Step 3: Cross multiply
721,441.98x = 1,082,151.99 × 248,131.44 - Step 4: Simplify right side
721,441.98x = 268,515,931,577.57 - Step 5: Solve for x
x = 268,515,931,577.57/721,441.98 - Step 6: Final answer
x = 372,193.38
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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.