Finding the Fourth Proportional to 543,624.75, 815,114.09 and 206,690.07
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Solution
The fourth proportional to 543,624.75, 815,114.09 and 206,690.07 is: 309,912.28
Step by Step Solution
- Step 1: Write the proportion equation
543,624.75 : 815,114.09 = 206,690.07 : x - Step 2: Convert to fraction form
543,624.75/815,114.09 = 206,690.07/x - Step 3: Cross multiply
543,624.75x = 815,114.09 × 206,690.07 - Step 4: Simplify right side
543,624.75x = 168,475,988,320.09 - Step 5: Solve for x
x = 168,475,988,320.09/543,624.75 - Step 6: Final answer
x = 309,912.28
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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.