Finding the Fourth Proportional to 662.24, 991.99 and 515.84
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Solution
The fourth proportional to 662.24, 991.99 and 515.84 is: 772.68
Step by Step Solution
- Step 1: Write the proportion equation
662.24 : 991.99 = 515.84 : x - Step 2: Convert to fraction form
662.24/991.99 = 515.84/x - Step 3: Cross multiply
662.24x = 991.99 × 515.84 - Step 4: Simplify right side
662.24x = 511,703.81 - Step 5: Solve for x
x = 511,703.81/662.24 - Step 6: Final answer
x = 772.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.