Finding the Fourth Proportional to 1,981,622.92, 2,734,655.70 and 1,076,211.40
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Solution
The fourth proportional to 1,981,622.92, 2,734,655.70 and 1,076,211.40 is: 1,485,180.46
Step by Step Solution
- Step 1: Write the proportion equation
1,981,622.92 : 2,734,655.70 = 1,076,211.40 : x - Step 2: Convert to fraction form
1,981,622.92/2,734,655.70 = 1,076,211.40/x - Step 3: Cross multiply
1,981,622.92x = 2,734,655.70 × 1,076,211.40 - Step 4: Simplify right side
1,981,622.92x = 2,943,067,639,414.98 - Step 5: Solve for x
x = 2,943,067,639,414.98/1,981,622.92 - Step 6: Final answer
x = 1,485,180.46
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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.