Finding the Fourth Proportional to 990,186.36, 1,485,358.02 and 280,218.84
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Solution
The fourth proportional to 990,186.36, 1,485,358.02 and 280,218.84 is: 420,350.47
Step by Step Solution
- Step 1: Write the proportion equation
990,186.36 : 1,485,358.02 = 280,218.84 : x - Step 2: Convert to fraction form
990,186.36/1,485,358.02 = 280,218.84/x - Step 3: Cross multiply
990,186.36x = 1,485,358.02 × 280,218.84 - Step 4: Simplify right side
990,186.36x = 416,225,301,349.10 - Step 5: Solve for x
x = 416,225,301,349.10/990,186.36 - Step 6: Final answer
x = 420,350.47
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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.