Finding the Fourth Proportional to 1,288,995.80, 1,933,493.70 and 994,083.80
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Solution
The fourth proportional to 1,288,995.80, 1,933,493.70 and 994,083.80 is: 1,491,125.70
Step by Step Solution
- Step 1: Write the proportion equation
1,288,995.80 : 1,933,493.70 = 994,083.80 : x - Step 2: Convert to fraction form
1,288,995.80/1,933,493.70 = 994,083.80/x - Step 3: Cross multiply
1,288,995.80x = 1,933,493.70 × 994,083.80 - Step 4: Simplify right side
1,288,995.80x = 1,922,054,764,572.06 - Step 5: Solve for x
x = 1,922,054,764,572.06/1,288,995.80 - Step 6: Final answer
x = 1,491,125.70
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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.