Finding the Fourth Proportional to 1,940,155.80, 2,910,233.70 and 1,491,739.80
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Solution
The fourth proportional to 1,940,155.80, 2,910,233.70 and 1,491,739.80 is: 2,237,609.70
Step by Step Solution
- Step 1: Write the proportion equation
1,940,155.80 : 2,910,233.70 = 1,491,739.80 : x - Step 2: Convert to fraction form
1,940,155.80/2,910,233.70 = 1,491,739.80/x - Step 3: Cross multiply
1,940,155.80x = 2,910,233.70 × 1,491,739.80 - Step 4: Simplify right side
1,940,155.80x = 4,341,311,437,591.26 - Step 5: Solve for x
x = 4,341,311,437,591.26/1,940,155.80 - Step 6: Final answer
x = 2,237,609.70
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1.5x scale
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.