Finding the Fourth Proportional to 1,728,378.29, 2,384,805.94 and 993,190.56
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Solution
The fourth proportional to 1,728,378.29, 2,384,805.94 and 993,190.56 is: 1,370,398.34
Step by Step Solution
- Step 1: Write the proportion equation
1,728,378.29 : 2,384,805.94 = 993,190.56 : x - Step 2: Convert to fraction form
1,728,378.29/2,384,805.94 = 993,190.56/x - Step 3: Cross multiply
1,728,378.29x = 2,384,805.94 × 993,190.56 - Step 4: Simplify right side
1,728,378.29x = 2,368,566,747,039.93 - Step 5: Solve for x
x = 2,368,566,747,039.93/1,728,378.29 - Step 6: Final answer
x = 1,370,398.34
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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.