Finding the Fourth Proportional to 2,639,251.13, 3,642,185.99 and 1,432,027.13
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Solution
The fourth proportional to 2,639,251.13, 3,642,185.99 and 1,432,027.13 is: 1,976,207.98
Step by Step Solution
- Step 1: Write the proportion equation
2,639,251.13 : 3,642,185.99 = 1,432,027.13 : x - Step 2: Convert to fraction form
2,639,251.13/3,642,185.99 = 1,432,027.13/x - Step 3: Cross multiply
2,639,251.13x = 3,642,185.99 × 1,432,027.13 - Step 4: Simplify right side
2,639,251.13x = 5,215,709,135,555.05 - Step 5: Solve for x
x = 5,215,709,135,555.05/2,639,251.13 - Step 6: Final answer
x = 1,976,207.98
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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.