Finding the Fourth Proportional to 2,278,776.26, 3,143,761.41 and 1,311,675.14
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Solution
The fourth proportional to 2,278,776.26, 3,143,761.41 and 1,311,675.14 is: 1,809,564.97
Step by Step Solution
- Step 1: Write the proportion equation
2,278,776.26 : 3,143,761.41 = 1,311,675.14 : x - Step 2: Convert to fraction form
2,278,776.26/3,143,761.41 = 1,311,675.14/x - Step 3: Cross multiply
2,278,776.26x = 3,143,761.41 × 1,311,675.14 - Step 4: Simplify right side
2,278,776.26x = 4,123,593,687,588.35 - Step 5: Solve for x
x = 4,123,593,687,588.35/2,278,776.26 - Step 6: Final answer
x = 1,809,564.97
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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.