Finding the Fourth Proportional to 993,163.05, 1,489,816.83 and 416,207.21
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Solution
The fourth proportional to 993,163.05, 1,489,816.83 and 416,207.21 is: 624,341.09
Step by Step Solution
- Step 1: Write the proportion equation
993,163.05 : 1,489,816.83 = 416,207.21 : x - Step 2: Convert to fraction form
993,163.05/1,489,816.83 = 416,207.21/x - Step 3: Cross multiply
993,163.05x = 1,489,816.83 × 416,207.21 - Step 4: Simplify right side
993,163.05x = 620,072,500,337.04 - Step 5: Solve for x
x = 620,072,500,337.04/993,163.05 - Step 6: Final answer
x = 624,341.09
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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.