Finding the Fourth Proportional to 869,724.10, 1,304,709.17 and 270,745.70
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Solution
The fourth proportional to 869,724.10, 1,304,709.17 and 270,745.70 is: 406,156.85
Step by Step Solution
- Step 1: Write the proportion equation
869,724.10 : 1,304,709.17 = 270,745.70 : x - Step 2: Convert to fraction form
869,724.10/1,304,709.17 = 270,745.70/x - Step 3: Cross multiply
869,724.10x = 1,304,709.17 × 270,745.70 - Step 4: Simplify right side
869,724.10x = 353,244,397,528.07 - Step 5: Solve for x
x = 353,244,397,528.07/869,724.10 - Step 6: Final answer
x = 406,156.85
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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.