Finding the Fourth Proportional to 582.74, 804.18 and 320.75
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Solution
The fourth proportional to 582.74, 804.18 and 320.75 is: 442.64
Step by Step Solution
- Step 1: Write the proportion equation
582.74 : 804.18 = 320.75 : x - Step 2: Convert to fraction form
582.74/804.18 = 320.75/x - Step 3: Cross multiply
582.74x = 804.18 × 320.75 - Step 4: Simplify right side
582.74x = 257,939.13 - Step 5: Solve for x
x = 257,939.13/582.74 - Step 6: Final answer
x = 442.64
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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.