Finding the Fourth Proportional to 979,874.14, 1,469,239.20 and 380,134.54
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Solution
The fourth proportional to 979,874.14, 1,469,239.20 and 380,134.54 is: 569,979.90
Step by Step Solution
- Step 1: Write the proportion equation
979,874.14 : 1,469,239.20 = 380,134.54 : x - Step 2: Convert to fraction form
979,874.14/1,469,239.20 = 380,134.54/x - Step 3: Cross multiply
979,874.14x = 1,469,239.20 × 380,134.54 - Step 4: Simplify right side
979,874.14x = 558,508,567,441.97 - Step 5: Solve for x
x = 558,508,567,441.97/979,874.14 - Step 6: Final answer
x = 569,979.90
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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.