Finding the Fourth Proportional to 1,543,120.11, 2,305,294.71 and 998,943.21
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Solution
The fourth proportional to 1,543,120.11, 2,305,294.71 and 998,943.21 is: 1,492,339.11
Step by Step Solution
- Step 1: Write the proportion equation
1,543,120.11 : 2,305,294.71 = 998,943.21 : x - Step 2: Convert to fraction form
1,543,120.11/2,305,294.71 = 998,943.21/x - Step 3: Cross multiply
1,543,120.11x = 2,305,294.71 × 998,943.21 - Step 4: Simplify right side
1,543,120.11x = 2,302,858,493,857.38 - Step 5: Solve for x
x = 2,302,858,493,857.38/1,543,120.11 - Step 6: Final answer
x = 1,492,339.11
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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.