Finding the Fourth Proportional to 811,520.97, 1,217,043.51 and 305,717.01
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Solution
The fourth proportional to 811,520.97, 1,217,043.51 and 305,717.01 is: 458,485.88
Step by Step Solution
- Step 1: Write the proportion equation
811,520.97 : 1,217,043.51 = 305,717.01 : x - Step 2: Convert to fraction form
811,520.97/1,217,043.51 = 305,717.01/x - Step 3: Cross multiply
811,520.97x = 1,217,043.51 × 305,717.01 - Step 4: Simplify right side
811,520.97x = 372,070,902,917.11 - Step 5: Solve for x
x = 372,070,902,917.11/811,520.97 - Step 6: Final answer
x = 458,485.88
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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.