Finding the Fourth Proportional to 720,063.11, 992,942.87 and 618,425.12
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Solution
The fourth proportional to 720,063.11, 992,942.87 and 618,425.12 is: 852,787.49
Step by Step Solution
- Step 1: Write the proportion equation
720,063.11 : 992,942.87 = 618,425.12 : x - Step 2: Convert to fraction form
720,063.11/992,942.87 = 618,425.12/x - Step 3: Cross multiply
720,063.11x = 992,942.87 × 618,425.12 - Step 4: Simplify right side
720,063.11x = 614,060,805,476.06 - Step 5: Solve for x
x = 614,060,805,476.06/720,063.11 - Step 6: Final answer
x = 852,787.49
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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.