Finding the Fourth Proportional to 2,639,763.44, 3,642,876.12 and 1,432,539.44
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Solution
The fourth proportional to 2,639,763.44, 3,642,876.12 and 1,432,539.44 is: 1,976,905.82
Step by Step Solution
- Step 1: Write the proportion equation
2,639,763.44 : 3,642,876.12 = 1,432,539.44 : x - Step 2: Convert to fraction form
2,639,763.44/3,642,876.12 = 1,432,539.44/x - Step 3: Cross multiply
2,639,763.44x = 3,642,876.12 × 1,432,539.44 - Step 4: Simplify right side
2,639,763.44x = 5,218,563,716,934.17 - Step 5: Solve for x
x = 5,218,563,716,934.17/2,639,763.44 - Step 6: Final answer
x = 1,976,905.82
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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.