Finding the Fourth Proportional to 988,339.43, 1,482,629.11 and 278,367.47
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Solution
The fourth proportional to 988,339.43, 1,482,629.11 and 278,367.47 is: 417,584.99
Step by Step Solution
- Step 1: Write the proportion equation
988,339.43 : 1,482,629.11 = 278,367.47 : x - Step 2: Convert to fraction form
988,339.43/1,482,629.11 = 278,367.47/x - Step 3: Cross multiply
988,339.43x = 1,482,629.11 × 278,367.47 - Step 4: Simplify right side
988,339.43x = 412,715,714,299.05 - Step 5: Solve for x
x = 412,715,714,299.05/988,339.43 - Step 6: Final answer
x = 417,584.99
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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.