Finding the Fourth Proportional to 1,603,121.32, 2,212,310.84 and 868,083.68
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Solution
The fourth proportional to 1,603,121.32, 2,212,310.84 and 868,083.68 is: 1,197,957.33
Step by Step Solution
- Step 1: Write the proportion equation
1,603,121.32 : 2,212,310.84 = 868,083.68 : x - Step 2: Convert to fraction form
1,603,121.32/2,212,310.84 = 868,083.68/x - Step 3: Cross multiply
1,603,121.32x = 2,212,310.84 × 868,083.68 - Step 4: Simplify right side
1,603,121.32x = 1,920,470,935,291.09 - Step 5: Solve for x
x = 1,920,470,935,291.09/1,603,121.32 - Step 6: Final answer
x = 1,197,957.33
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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.