Finding the Fourth Proportional to 823.99, 1,137.13 and 450.99
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Solution
The fourth proportional to 823.99, 1,137.13 and 450.99 is: 622.38
Step by Step Solution
- Step 1: Write the proportion equation
823.99 : 1,137.13 = 450.99 : x - Step 2: Convert to fraction form
823.99/1,137.13 = 450.99/x - Step 3: Cross multiply
823.99x = 1,137.13 × 450.99 - Step 4: Simplify right side
823.99x = 512,833.13 - Step 5: Solve for x
x = 512,833.13/823.99 - Step 6: Final answer
x = 622.38
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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.