Finding the Fourth Proportional to 3,678,738.74, 5,518,938.51 and 1,120,182.49
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Solution
The fourth proportional to 3,678,738.74, 5,518,938.51 and 1,120,182.49 is: 1,680,526.60
Step by Step Solution
- Step 1: Write the proportion equation
3,678,738.74 : 5,518,938.51 = 1,120,182.49 : x - Step 2: Convert to fraction form
3,678,738.74/5,518,938.51 = 1,120,182.49/x - Step 3: Cross multiply
3,678,738.74x = 5,518,938.51 × 1,120,182.49 - Step 4: Simplify right side
3,678,738.74x = 6,182,218,289,187.36 - Step 5: Solve for x
x = 6,182,218,289,187.36/3,678,738.74 - Step 6: Final answer
x = 1,680,526.60
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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.