Finding the Fourth Proportional to 382,988.12, 574,991.06 and 327,186.81
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Solution
The fourth proportional to 382,988.12, 574,991.06 and 327,186.81 is: 491,214.95
Step by Step Solution
- Step 1: Write the proportion equation
382,988.12 : 574,991.06 = 327,186.81 : x - Step 2: Convert to fraction form
382,988.12/574,991.06 = 327,186.81/x - Step 3: Cross multiply
382,988.12x = 574,991.06 × 327,186.81 - Step 4: Simplify right side
382,988.12x = 188,129,489,063.99 - Step 5: Solve for x
x = 188,129,489,063.99/382,988.12 - Step 6: Final answer
x = 491,214.95
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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.