Finding the Fourth Proportional to 1,603,642.44, 2,213,008.95 and 868,578.43
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Solution
The fourth proportional to 1,603,642.44, 2,213,008.95 and 868,578.43 is: 1,198,628.69
Step by Step Solution
- Step 1: Write the proportion equation
1,603,642.44 : 2,213,008.95 = 868,578.43 : x - Step 2: Convert to fraction form
1,603,642.44/2,213,008.95 = 868,578.43/x - Step 3: Cross multiply
1,603,642.44x = 2,213,008.95 × 868,578.43 - Step 4: Simplify right side
1,603,642.44x = 1,922,171,839,366.95 - Step 5: Solve for x
x = 1,922,171,839,366.95/1,603,642.44 - Step 6: Final answer
x = 1,198,628.69
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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.