Finding the Fourth Proportional to 3,786,459.20, 5,225,313.20 and 2,067,581.28
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Solution
The fourth proportional to 3,786,459.20, 5,225,313.20 and 2,067,581.28 is: 2,853,261.90
Step by Step Solution
- Step 1: Write the proportion equation
3,786,459.20 : 5,225,313.20 = 2,067,581.28 : x - Step 2: Convert to fraction form
3,786,459.20/5,225,313.20 = 2,067,581.28/x - Step 3: Cross multiply
3,786,459.20x = 5,225,313.20 × 2,067,581.28 - Step 4: Simplify right side
3,786,459.20x = 10,803,759,744,118.99 - Step 5: Solve for x
x = 10,803,759,744,118.99/3,786,459.20 - Step 6: Final answer
x = 2,853,261.90
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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.