Finding the Fourth Proportional to 415,233.80, 622,850.70 and 321,921.80
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Solution
The fourth proportional to 415,233.80, 622,850.70 and 321,921.80 is: 482,882.70
Step by Step Solution
- Step 1: Write the proportion equation
415,233.80 : 622,850.70 = 321,921.80 : x - Step 2: Convert to fraction form
415,233.80/622,850.70 = 321,921.80/x - Step 3: Cross multiply
415,233.80x = 622,850.70 × 321,921.80 - Step 4: Simplify right side
415,233.80x = 200,509,218,475.26 - Step 5: Solve for x
x = 200,509,218,475.26/415,233.80 - Step 6: Final answer
x = 482,882.70
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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.