Finding the Fourth Proportional to 990,112.44, 1,366,318.62 and 537,393.72
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Solution
The fourth proportional to 990,112.44, 1,366,318.62 and 537,393.72 is: 741,583.50
Step by Step Solution
- Step 1: Write the proportion equation
990,112.44 : 1,366,318.62 = 537,393.72 : x - Step 2: Convert to fraction form
990,112.44/1,366,318.62 = 537,393.72/x - Step 3: Cross multiply
990,112.44x = 1,366,318.62 × 537,393.72 - Step 4: Simplify right side
990,112.44x = 734,251,045,907.07 - Step 5: Solve for x
x = 734,251,045,907.07/990,112.44 - Step 6: Final answer
x = 741,583.50
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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.