Finding the Fourth Proportional to 1,990,257.62, 2,745,894.77 and 1,622,101.68
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Solution
The fourth proportional to 1,990,257.62, 2,745,894.77 and 1,622,101.68 is: 2,237,961.80
Step by Step Solution
- Step 1: Write the proportion equation
1,990,257.62 : 2,745,894.77 = 1,622,101.68 : x - Step 2: Convert to fraction form
1,990,257.62/2,745,894.77 = 1,622,101.68/x - Step 3: Cross multiply
1,990,257.62x = 2,745,894.77 × 1,622,101.68 - Step 4: Simplify right side
1,990,257.62x = 4,454,120,517,492.59 - Step 5: Solve for x
x = 4,454,120,517,492.59/1,990,257.62 - Step 6: Final answer
x = 2,237,961.80
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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.