Finding the Fourth Proportional to 669.24, 923.67 and 447.75
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Solution
The fourth proportional to 669.24, 923.67 and 447.75 is: 617.97
Step by Step Solution
- Step 1: Write the proportion equation
669.24 : 923.67 = 447.75 : x - Step 2: Convert to fraction form
669.24/923.67 = 447.75/x - Step 3: Cross multiply
669.24x = 923.67 × 447.75 - Step 4: Simplify right side
669.24x = 413,573.24 - Step 5: Solve for x
x = 413,573.24/669.24 - Step 6: Final answer
x = 617.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.