Finding the Fourth Proportional to 2,158,139.98, 3,234,979.20 and 809,351.44
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Solution
The fourth proportional to 2,158,139.98, 3,234,979.20 and 809,351.44 is: 1,213,190.57
Step by Step Solution
- Step 1: Write the proportion equation
2,158,139.98 : 3,234,979.20 = 809,351.44 : x - Step 2: Convert to fraction form
2,158,139.98/3,234,979.20 = 809,351.44/x - Step 3: Cross multiply
2,158,139.98x = 3,234,979.20 × 809,351.44 - Step 4: Simplify right side
2,158,139.98x = 2,618,235,073,890.05 - Step 5: Solve for x
x = 2,618,235,073,890.05/2,158,139.98 - Step 6: Final answer
x = 1,213,190.57
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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.