Finding the Fourth Proportional to 431,205.30, 590,753.39 and 415,043.99
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Solution
The fourth proportional to 431,205.30, 590,753.39 and 415,043.99 is: 568,612.32
Step by Step Solution
- Step 1: Write the proportion equation
431,205.30 : 590,753.39 = 415,043.99 : x - Step 2: Convert to fraction form
431,205.30/590,753.39 = 415,043.99/x - Step 3: Cross multiply
431,205.30x = 590,753.39 × 415,043.99 - Step 4: Simplify right side
431,205.30x = 245,188,644,091.63 - Step 5: Solve for x
x = 245,188,644,091.63/431,205.30 - Step 6: Final answer
x = 568,612.32
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.