Finding the Fourth Proportional to 3,530,378.63, 4,871,532.65 and 1,981,284.99
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Solution
The fourth proportional to 3,530,378.63, 4,871,532.65 and 1,981,284.99 is: 2,733,954.49
Step by Step Solution
- Step 1: Write the proportion equation
3,530,378.63 : 4,871,532.65 = 1,981,284.99 : x - Step 2: Convert to fraction form
3,530,378.63/4,871,532.65 = 1,981,284.99/x - Step 3: Cross multiply
3,530,378.63x = 4,871,532.65 × 1,981,284.99 - Step 4: Simplify right side
3,530,378.63x = 9,651,894,517,739.92 - Step 5: Solve for x
x = 9,651,894,517,739.92/3,530,378.63 - Step 6: Final answer
x = 2,733,954.49
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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.