Finding the Fourth Proportional to 823.23, 1,134 and 657.99
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Solution
The fourth proportional to 823.23, 1,134 and 657.99 is: 906.38
Step by Step Solution
- Step 1: Write the proportion equation
823.23 : 1,134 = 657.99 : x - Step 2: Convert to fraction form
823.23/1,134 = 657.99/x - Step 3: Cross multiply
823.23x = 1,134 × 657.99 - Step 4: Simplify right side
823.23x = 746,160.66 - Step 5: Solve for x
x = 746,160.66/823.23 - Step 6: Final answer
x = 906.38
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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.