Finding the Fourth Proportional to 811,837.62, 1,120,324.84 and 449,239.39
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Solution
The fourth proportional to 811,837.62, 1,120,324.84 and 449,239.39 is: 619,944.22
Step by Step Solution
- Step 1: Write the proportion equation
811,837.62 : 1,120,324.84 = 449,239.39 : x - Step 2: Convert to fraction form
811,837.62/1,120,324.84 = 449,239.39/x - Step 3: Cross multiply
811,837.62x = 1,120,324.84 × 449,239.39 - Step 4: Simplify right side
811,837.62x = 503,294,043,799.54 - Step 5: Solve for x
x = 503,294,043,799.54/811,837.62 - Step 6: Final answer
x = 619,944.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.