Finding the Fourth Proportional to 3,207,512.38, 4,810,687.32 and 1,288,346.05
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Solution
The fourth proportional to 3,207,512.38, 4,810,687.32 and 1,288,346.05 is: 1,932,285.61
Step by Step Solution
- Step 1: Write the proportion equation
3,207,512.38 : 4,810,687.32 = 1,288,346.05 : x - Step 2: Convert to fraction form
3,207,512.38/4,810,687.32 = 1,288,346.05/x - Step 3: Cross multiply
3,207,512.38x = 4,810,687.32 × 1,288,346.05 - Step 4: Simplify right side
3,207,512.38x = 6,197,830,006,507.09 - Step 5: Solve for x
x = 6,197,830,006,507.09/3,207,512.38 - Step 6: Final answer
x = 1,932,285.61
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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.