Finding the Fourth Proportional to 388,545.46, 582,789.74 and 122,382.09
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Solution
The fourth proportional to 388,545.46, 582,789.74 and 122,382.09 is: 183,564.17
Step by Step Solution
- Step 1: Write the proportion equation
388,545.46 : 582,789.74 = 122,382.09 : x - Step 2: Convert to fraction form
388,545.46/582,789.74 = 122,382.09/x - Step 3: Cross multiply
388,545.46x = 582,789.74 × 122,382.09 - Step 4: Simplify right side
388,545.46x = 71,323,025,799.85 - Step 5: Solve for x
x = 71,323,025,799.85/388,545.46 - Step 6: Final answer
x = 183,564.17
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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.