Finding the Fourth Proportional to 519.99, 779.73 and 324.69
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Solution
The fourth proportional to 519.99, 779.73 and 324.69 is: 486.88
Step by Step Solution
- Step 1: Write the proportion equation
519.99 : 779.73 = 324.69 : x - Step 2: Convert to fraction form
519.99/779.73 = 324.69/x - Step 3: Cross multiply
519.99x = 779.73 × 324.69 - Step 4: Simplify right side
519.99x = 253,170.53 - Step 5: Solve for x
x = 253,170.53/519.99 - Step 6: Final answer
x = 486.88
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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.