Finding the Fourth Proportional to 518.70, 778.44 and 323.99
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Solution
The fourth proportional to 518.70, 778.44 and 323.99 is: 486.22
Step by Step Solution
- Step 1: Write the proportion equation
518.70 : 778.44 = 323.99 : x - Step 2: Convert to fraction form
518.70/778.44 = 323.99/x - Step 3: Cross multiply
518.70x = 778.44 × 323.99 - Step 4: Simplify right side
518.70x = 252,201.26 - Step 5: Solve for x
x = 252,201.26/518.70 - Step 6: Final answer
x = 486.22
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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.