Finding the Fourth Proportional to 1,511,489.88, 2,256,176.21 and 1,332,134.82
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Solution
The fourth proportional to 1,511,489.88, 2,256,176.21 and 1,332,134.82 is: 1,988,455.84
Step by Step Solution
- Step 1: Write the proportion equation
1,511,489.88 : 2,256,176.21 = 1,332,134.82 : x - Step 2: Convert to fraction form
1,511,489.88/2,256,176.21 = 1,332,134.82/x - Step 3: Cross multiply
1,511,489.88x = 2,256,176.21 × 1,332,134.82 - Step 4: Simplify right side
1,511,489.88x = 3,005,530,882,735.96 - Step 5: Solve for x
x = 3,005,530,882,735.96/1,511,489.88 - Step 6: Final answer
x = 1,988,455.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.