Finding the Fourth Proportional to 2,639,230.80, 3,642,180.84 and 1,432,006.80
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Solution
The fourth proportional to 2,639,230.80, 3,642,180.84 and 1,432,006.80 is: 1,976,192.35
Step by Step Solution
- Step 1: Write the proportion equation
2,639,230.80 : 3,642,180.84 = 1,432,006.80 : x - Step 2: Convert to fraction form
2,639,230.80/3,642,180.84 = 1,432,006.80/x - Step 3: Cross multiply
2,639,230.80x = 3,642,180.84 × 1,432,006.80 - Step 4: Simplify right side
2,639,230.80x = 5,215,627,729,709.71 - Step 5: Solve for x
x = 5,215,627,729,709.71/2,639,230.80 - Step 6: Final answer
x = 1,976,192.35
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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.