Finding the Fourth Proportional to 1,899,163.42, 2,620,832.88 and 1,039,738.12
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Solution
The fourth proportional to 1,899,163.42, 2,620,832.88 and 1,039,738.12 is: 1,434,831.69
Step by Step Solution
- Step 1: Write the proportion equation
1,899,163.42 : 2,620,832.88 = 1,039,738.12 : x - Step 2: Convert to fraction form
1,899,163.42/2,620,832.88 = 1,039,738.12/x - Step 3: Cross multiply
1,899,163.42x = 2,620,832.88 × 1,039,738.12 - Step 4: Simplify right side
1,899,163.42x = 2,724,979,851,485.39 - Step 5: Solve for x
x = 2,724,979,851,485.39/1,899,163.42 - Step 6: Final answer
x = 1,434,831.69
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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.