Finding the Fourth Proportional to 811,896.53, 1,218,115.26 and 272,206.21
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Solution
The fourth proportional to 811,896.53, 1,218,115.26 and 272,206.21 is: 408,400.00
Step by Step Solution
- Step 1: Write the proportion equation
811,896.53 : 1,218,115.26 = 272,206.21 : x - Step 2: Convert to fraction form
811,896.53/1,218,115.26 = 272,206.21/x - Step 3: Cross multiply
811,896.53x = 1,218,115.26 × 272,206.21 - Step 4: Simplify right side
811,896.53x = 331,578,536,906.73 - Step 5: Solve for x
x = 331,578,536,906.73/811,896.53 - Step 6: Final answer
x = 408,400.00
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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.