Finding the Fourth Proportional to 739.99, 1,109.92 and 681.99
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Solution
The fourth proportional to 739.99, 1,109.92 and 681.99 is: 1,022.93
Step by Step Solution
- Step 1: Write the proportion equation
739.99 : 1,109.92 = 681.99 : x - Step 2: Convert to fraction form
739.99/1,109.92 = 681.99/x - Step 3: Cross multiply
739.99x = 1,109.92 × 681.99 - Step 4: Simplify right side
739.99x = 756,954.34 - Step 5: Solve for x
x = 756,954.34/739.99 - Step 6: Final answer
x = 1,022.93
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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.