Finding the Fourth Proportional to 1,135,721.18, 1,703,213.13 and 377,358.99
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Solution
The fourth proportional to 1,135,721.18, 1,703,213.13 and 377,358.99 is: 565,915.99
Step by Step Solution
- Step 1: Write the proportion equation
1,135,721.18 : 1,703,213.13 = 377,358.99 : x - Step 2: Convert to fraction form
1,135,721.18/1,703,213.13 = 377,358.99/x - Step 3: Cross multiply
1,135,721.18x = 1,703,213.13 × 377,358.99 - Step 4: Simplify right side
1,135,721.18x = 642,722,777,975.47 - Step 5: Solve for x
x = 642,722,777,975.47/1,135,721.18 - Step 6: Final answer
x = 565,915.99
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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.