Finding the Fourth Proportional to 2,138,599.25, 3,207,939.87 and 699,288.07
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Solution
The fourth proportional to 2,138,599.25, 3,207,939.87 and 699,288.07 is: 1,048,945.52
Step by Step Solution
- Step 1: Write the proportion equation
2,138,599.25 : 3,207,939.87 = 699,288.07 : x - Step 2: Convert to fraction form
2,138,599.25/3,207,939.87 = 699,288.07/x - Step 3: Cross multiply
2,138,599.25x = 3,207,939.87 × 699,288.07 - Step 4: Simplify right side
2,138,599.25x = 2,243,274,087,000.61 - Step 5: Solve for x
x = 2,243,274,087,000.61/2,138,599.25 - Step 6: Final answer
x = 1,048,945.52
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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.