Finding the Fourth Proportional to 3,409,743.12, 4,705,378.74 and 1,861,015.92
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Solution
The fourth proportional to 3,409,743.12, 4,705,378.74 and 1,861,015.92 is: 2,568,165.53
Step by Step Solution
- Step 1: Write the proportion equation
3,409,743.12 : 4,705,378.74 = 1,861,015.92 : x - Step 2: Convert to fraction form
3,409,743.12/4,705,378.74 = 1,861,015.92/x - Step 3: Cross multiply
3,409,743.12x = 4,705,378.74 × 1,861,015.92 - Step 4: Simplify right side
3,409,743.12x = 8,756,784,744,769.54 - Step 5: Solve for x
x = 8,756,784,744,769.54/3,409,743.12 - Step 6: Final answer
x = 2,568,165.53
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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.