Finding the Fourth Proportional to 1,203,142.80, 1,660,179.20 and 719,531.49
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Solution
The fourth proportional to 1,203,142.80, 1,660,179.20 and 719,531.49 is: 992,859.05
Step by Step Solution
- Step 1: Write the proportion equation
1,203,142.80 : 1,660,179.20 = 719,531.49 : x - Step 2: Convert to fraction form
1,203,142.80/1,660,179.20 = 719,531.49/x - Step 3: Cross multiply
1,203,142.80x = 1,660,179.20 × 719,531.49 - Step 4: Simplify right side
1,203,142.80x = 1,194,551,213,443.01 - Step 5: Solve for x
x = 1,194,551,213,443.01/1,203,142.80 - Step 6: Final answer
x = 992,859.05
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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.