Finding the Fourth Proportional to 1,972,863.98, 2,722,260.39 and 1,198,091.90
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Solution
The fourth proportional to 1,972,863.98, 2,722,260.39 and 1,198,091.90 is: 1,653,189.55
Step by Step Solution
- Step 1: Write the proportion equation
1,972,863.98 : 2,722,260.39 = 1,198,091.90 : x - Step 2: Convert to fraction form
1,972,863.98/2,722,260.39 = 1,198,091.90/x - Step 3: Cross multiply
1,972,863.98x = 2,722,260.39 × 1,198,091.90 - Step 4: Simplify right side
1,972,863.98x = 3,261,518,122,949.84 - Step 5: Solve for x
x = 3,261,518,122,949.84/1,972,863.98 - Step 6: Final answer
x = 1,653,189.55
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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.