Finding the Fourth Proportional to 2,892,922.88, 3,992,639.36 and 1,790,707.68
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Solution
The fourth proportional to 2,892,922.88, 3,992,639.36 and 1,790,707.68 is: 2,471,427.78
Step by Step Solution
- Step 1: Write the proportion equation
2,892,922.88 : 3,992,639.36 = 1,790,707.68 : x - Step 2: Convert to fraction form
2,892,922.88/3,992,639.36 = 1,790,707.68/x - Step 3: Cross multiply
2,892,922.88x = 3,992,639.36 × 1,790,707.68 - Step 4: Simplify right side
2,892,922.88x = 7,149,649,965,422.28 - Step 5: Solve for x
x = 7,149,649,965,422.28/2,892,922.88 - Step 6: Final answer
x = 2,471,427.78
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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.