Finding the Fourth Proportional to 4,231,859.62, 6,345,788.65 and 1,639,378.68
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Solution
The fourth proportional to 4,231,859.62, 6,345,788.65 and 1,639,378.68 is: 2,458,292.94
Step by Step Solution
- Step 1: Write the proportion equation
4,231,859.62 : 6,345,788.65 = 1,639,378.68 : x - Step 2: Convert to fraction form
4,231,859.62/6,345,788.65 = 1,639,378.68/x - Step 3: Cross multiply
4,231,859.62x = 6,345,788.65 × 1,639,378.68 - Step 4: Simplify right side
4,231,859.62x = 10,403,150,620,595.98 - Step 5: Solve for x
x = 10,403,150,620,595.98/4,231,859.62 - Step 6: Final answer
x = 2,458,292.94
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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.