Finding the Fourth Proportional to 618, 852.84 and 411
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Solution
The fourth proportional to 618, 852.84 and 411 is: 567.18
Step by Step Solution
- Step 1: Write the proportion equation
618 : 852.84 = 411 : x - Step 2: Convert to fraction form
618/852.84 = 411/x - Step 3: Cross multiply
618x = 852.84 × 411 - Step 4: Simplify right side
618x = 350,517.24 - Step 5: Solve for x
x = 350,517.24/618 - Step 6: Final answer
x = 567.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.