Finding the Fourth Proportional to 990,318.69, 1,485,578.70 and 341,810.49
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Solution
The fourth proportional to 990,318.69, 1,485,578.70 and 341,810.49 is: 512,750.48
Step by Step Solution
- Step 1: Write the proportion equation
990,318.69 : 1,485,578.70 = 341,810.49 : x - Step 2: Convert to fraction form
990,318.69/1,485,578.70 = 341,810.49/x - Step 3: Cross multiply
990,318.69x = 1,485,578.70 × 341,810.49 - Step 4: Simplify right side
990,318.69x = 507,786,383,380.56 - Step 5: Solve for x
x = 507,786,383,380.56/990,318.69 - Step 6: Final answer
x = 512,750.48
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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.