Finding the Fourth Proportional to 1,378,292.14, 2,067,436.99 and 431,736.67
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Solution
The fourth proportional to 1,378,292.14, 2,067,436.99 and 431,736.67 is: 647,604.62
Step by Step Solution
- Step 1: Write the proportion equation
1,378,292.14 : 2,067,436.99 = 431,736.67 : x - Step 2: Convert to fraction form
1,378,292.14/2,067,436.99 = 431,736.67/x - Step 3: Cross multiply
1,378,292.14x = 2,067,436.99 × 431,736.67 - Step 4: Simplify right side
1,378,292.14x = 892,588,361,497.42 - Step 5: Solve for x
x = 892,588,361,497.42/1,378,292.14 - Step 6: Final answer
x = 647,604.62
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1.5x scale
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.