Finding the Fourth Proportional to 905.29, 1,249.21 and 506.99
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Solution
The fourth proportional to 905.29, 1,249.21 and 506.99 is: 699.60
Step by Step Solution
- Step 1: Write the proportion equation
905.29 : 1,249.21 = 506.99 : x - Step 2: Convert to fraction form
905.29/1,249.21 = 506.99/x - Step 3: Cross multiply
905.29x = 1,249.21 × 506.99 - Step 4: Simplify right side
905.29x = 633,336.98 - Step 5: Solve for x
x = 633,336.98/905.29 - Step 6: Final answer
x = 699.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.