Finding the Fourth Proportional to 1,993,953.51, 2,991,906.21 and 1,235,592.12
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Solution
The fourth proportional to 1,993,953.51, 2,991,906.21 and 1,235,592.12 is: 1,853,992.95
Step by Step Solution
- Step 1: Write the proportion equation
1,993,953.51 : 2,991,906.21 = 1,235,592.12 : x - Step 2: Convert to fraction form
1,993,953.51/2,991,906.21 = 1,235,592.12/x - Step 3: Cross multiply
1,993,953.51x = 2,991,906.21 × 1,235,592.12 - Step 4: Simplify right side
1,993,953.51x = 3,696,775,752,708.18 - Step 5: Solve for x
x = 3,696,775,752,708.18/1,993,953.51 - Step 6: Final answer
x = 1,853,992.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.