Finding the Fourth Proportional to 1,218,138.26, 1,680,882.62 and 674,240.94
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Solution
The fourth proportional to 1,218,138.26, 1,680,882.62 and 674,240.94 is: 930,370.48
Step by Step Solution
- Step 1: Write the proportion equation
1,218,138.26 : 1,680,882.62 = 674,240.94 : x - Step 2: Convert to fraction form
1,218,138.26/1,680,882.62 = 674,240.94/x - Step 3: Cross multiply
1,218,138.26x = 1,680,882.62 × 674,240.94 - Step 4: Simplify right side
1,218,138.26x = 1,133,319,874,367.26 - Step 5: Solve for x
x = 1,133,319,874,367.26/1,218,138.26 - Step 6: Final answer
x = 930,370.48
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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.