Finding the Fourth Proportional to 1,295,116.10, 1,942,674.15 and 1,286,821.70
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Solution
The fourth proportional to 1,295,116.10, 1,942,674.15 and 1,286,821.70 is: 1,930,232.55
Step by Step Solution
- Step 1: Write the proportion equation
1,295,116.10 : 1,942,674.15 = 1,286,821.70 : x - Step 2: Convert to fraction form
1,295,116.10/1,942,674.15 = 1,286,821.70/x - Step 3: Cross multiply
1,295,116.10x = 1,942,674.15 × 1,286,821.70 - Step 4: Simplify right side
1,295,116.10x = 2,499,875,252,249.05 - Step 5: Solve for x
x = 2,499,875,252,249.05/1,295,116.10 - Step 6: Final answer
x = 1,930,232.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.