Finding the Fourth Proportional to 2,578,709.43, 3,868,836.90 and 1,040,913.09
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Solution
The fourth proportional to 2,578,709.43, 3,868,836.90 and 1,040,913.09 is: 1,561,681.56
Step by Step Solution
- Step 1: Write the proportion equation
2,578,709.43 : 3,868,836.90 = 1,040,913.09 : x - Step 2: Convert to fraction form
2,578,709.43/3,868,836.90 = 1,040,913.09/x - Step 3: Cross multiply
2,578,709.43x = 3,868,836.90 × 1,040,913.09 - Step 4: Simplify right side
2,578,709.43x = 4,027,122,972,285.02 - Step 5: Solve for x
x = 4,027,122,972,285.02/2,578,709.43 - Step 6: Final answer
x = 1,561,681.56
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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.