Finding the Fourth Proportional to 987,286.29, 1,362,456.06 and 534,576.21
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Solution
The fourth proportional to 987,286.29, 1,362,456.06 and 534,576.21 is: 737,715.69
Step by Step Solution
- Step 1: Write the proportion equation
987,286.29 : 1,362,456.06 = 534,576.21 : x - Step 2: Convert to fraction form
987,286.29/1,362,456.06 = 534,576.21/x - Step 3: Cross multiply
987,286.29x = 1,362,456.06 × 534,576.21 - Step 4: Simplify right side
987,286.29x = 728,336,587,361.17 - Step 5: Solve for x
x = 728,336,587,361.17/987,286.29 - Step 6: Final answer
x = 737,715.69
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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.