Finding the Fourth Proportional to 990,378.70, 1,366,728.36 and 582,497.74
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Solution
The fourth proportional to 990,378.70, 1,366,728.36 and 582,497.74 is: 803,850.27
Step by Step Solution
- Step 1: Write the proportion equation
990,378.70 : 1,366,728.36 = 582,497.74 : x - Step 2: Convert to fraction form
990,378.70/1,366,728.36 = 582,497.74/x - Step 3: Cross multiply
990,378.70x = 1,366,728.36 × 582,497.74 - Step 4: Simplify right side
990,378.70x = 796,116,180,893.91 - Step 5: Solve for x
x = 796,116,180,893.91/990,378.70 - Step 6: Final answer
x = 803,850.27
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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.