Finding the Fourth Proportional to 990,371.16, 1,365,315.84 and 703,786.68
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Solution
The fourth proportional to 990,371.16, 1,365,315.84 and 703,786.68 is: 970,233.32
Step by Step Solution
- Step 1: Write the proportion equation
990,371.16 : 1,365,315.84 = 703,786.68 : x - Step 2: Convert to fraction form
990,371.16/1,365,315.84 = 703,786.68/x - Step 3: Cross multiply
990,371.16x = 1,365,315.84 × 703,786.68 - Step 4: Simplify right side
990,371.16x = 960,891,102,185.01 - Step 5: Solve for x
x = 960,891,102,185.01/990,371.16 - Step 6: Final answer
x = 970,233.32
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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.