Finding the Fourth Proportional to 811,202.12, 1,215,945.12 and 305,544.31
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Solution
The fourth proportional to 811,202.12, 1,215,945.12 and 305,544.31 is: 457,993.27
Step by Step Solution
- Step 1: Write the proportion equation
811,202.12 : 1,215,945.12 = 305,544.31 : x - Step 2: Convert to fraction form
811,202.12/1,215,945.12 = 305,544.31/x - Step 3: Cross multiply
811,202.12x = 1,215,945.12 × 305,544.31 - Step 4: Simplify right side
811,202.12x = 371,525,112,688.27 - Step 5: Solve for x
x = 371,525,112,688.27/811,202.12 - Step 6: Final answer
x = 457,993.27
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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.