Finding the Fourth Proportional to 811,201.62, 1,215,944.37 and 305,543.81
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Solution
The fourth proportional to 811,201.62, 1,215,944.37 and 305,543.81 is: 457,992.51
Step by Step Solution
- Step 1: Write the proportion equation
811,201.62 : 1,215,944.37 = 305,543.81 : x - Step 2: Convert to fraction form
811,201.62/1,215,944.37 = 305,543.81/x - Step 3: Cross multiply
811,201.62x = 1,215,944.37 × 305,543.81 - Step 4: Simplify right side
811,201.62x = 371,524,269,478.13 - Step 5: Solve for x
x = 371,524,269,478.13/811,201.62 - Step 6: Final answer
x = 457,992.51
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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.