Finding the Fourth Proportional to 584.19, 806.58 and 387.99
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Solution
The fourth proportional to 584.19, 806.58 and 387.99 is: 535.69
Step by Step Solution
- Step 1: Write the proportion equation
584.19 : 806.58 = 387.99 : x - Step 2: Convert to fraction form
584.19/806.58 = 387.99/x - Step 3: Cross multiply
584.19x = 806.58 × 387.99 - Step 4: Simplify right side
584.19x = 312,944.97 - Step 5: Solve for x
x = 312,944.97/584.19 - Step 6: Final answer
x = 535.69
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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.