Finding the Fourth Proportional to 1,543,122.11, 2,305,297.69 and 998,945.21
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Solution
The fourth proportional to 1,543,122.11, 2,305,297.69 and 998,945.21 is: 1,492,342.10
Step by Step Solution
- Step 1: Write the proportion equation
1,543,122.11 : 2,305,297.69 = 998,945.21 : x - Step 2: Convert to fraction form
1,543,122.11/2,305,297.69 = 998,945.21/x - Step 3: Cross multiply
1,543,122.11x = 2,305,297.69 × 998,945.21 - Step 4: Simplify right side
1,543,122.11x = 2,302,866,085,049.57 - Step 5: Solve for x
x = 2,302,866,085,049.57/1,543,122.11 - Step 6: Final answer
x = 1,492,342.10
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.