Finding the Fourth Proportional to 486.04, 729.18 and 446.04
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Solution
The fourth proportional to 486.04, 729.18 and 446.04 is: 669.17
Step by Step Solution
- Step 1: Write the proportion equation
486.04 : 729.18 = 446.04 : x - Step 2: Convert to fraction form
486.04/729.18 = 446.04/x - Step 3: Cross multiply
486.04x = 729.18 × 446.04 - Step 4: Simplify right side
486.04x = 325,243.45 - Step 5: Solve for x
x = 325,243.45/486.04 - Step 6: Final answer
x = 669.17
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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.