Finding the Fourth Proportional to 3,985,623.43, 5,979,436.49 and 1,145,740.75
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Solution
The fourth proportional to 3,985,623.43, 5,979,436.49 and 1,145,740.75 is: 1,718,898.98
Step by Step Solution
- Step 1: Write the proportion equation
3,985,623.43 : 5,979,436.49 = 1,145,740.75 : x - Step 2: Convert to fraction form
3,985,623.43/5,979,436.49 = 1,145,740.75/x - Step 3: Cross multiply
3,985,623.43x = 5,979,436.49 × 1,145,740.75 - Step 4: Simplify right side
3,985,623.43x = 6,850,884,048,629.97 - Step 5: Solve for x
x = 6,850,884,048,629.97/3,985,623.43 - Step 6: Final answer
x = 1,718,898.98
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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.