Finding the Fourth Proportional to 814.99, 1,219.59 and 506.99
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Solution
The fourth proportional to 814.99, 1,219.59 and 506.99 is: 758.68
Step by Step Solution
- Step 1: Write the proportion equation
814.99 : 1,219.59 = 506.99 : x - Step 2: Convert to fraction form
814.99/1,219.59 = 506.99/x - Step 3: Cross multiply
814.99x = 1,219.59 × 506.99 - Step 4: Simplify right side
814.99x = 618,313.84 - Step 5: Solve for x
x = 618,313.84/814.99 - Step 6: Final answer
x = 758.68
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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.