Finding the Fourth Proportional to 3,850,427.28, 5,311,921.68 and 2,321,685.12
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Solution
The fourth proportional to 3,850,427.28, 5,311,921.68 and 2,321,685.12 is: 3,202,919.73
Step by Step Solution
- Step 1: Write the proportion equation
3,850,427.28 : 5,311,921.68 = 2,321,685.12 : x - Step 2: Convert to fraction form
3,850,427.28/5,311,921.68 = 2,321,685.12/x - Step 3: Cross multiply
3,850,427.28x = 5,311,921.68 × 2,321,685.12 - Step 4: Simplify right side
3,850,427.28x = 12,332,609,523,061.40 - Step 5: Solve for x
x = 12,332,609,523,061.40/3,850,427.28 - Step 6: Final answer
x = 3,202,919.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.