Finding the Fourth Proportional to 990,105.12, 1,366,347.69 and 537,396.12
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Solution
The fourth proportional to 990,105.12, 1,366,347.69 and 537,396.12 is: 741,608.07
Step by Step Solution
- Step 1: Write the proportion equation
990,105.12 : 1,366,347.69 = 537,396.12 : x - Step 2: Convert to fraction form
990,105.12/1,366,347.69 = 537,396.12/x - Step 3: Cross multiply
990,105.12x = 1,366,347.69 × 537,396.12 - Step 4: Simplify right side
990,105.12x = 734,269,947,176.96 - Step 5: Solve for x
x = 734,269,947,176.96/990,105.12 - Step 6: Final answer
x = 741,608.07
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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.