Finding the Fourth Proportional to 1,388,604.70, 2,082,887.61 and 547,163.74
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Solution
The fourth proportional to 1,388,604.70, 2,082,887.61 and 547,163.74 is: 820,737.95
Step by Step Solution
- Step 1: Write the proportion equation
1,388,604.70 : 2,082,887.61 = 547,163.74 : x - Step 2: Convert to fraction form
1,388,604.70/2,082,887.61 = 547,163.74/x - Step 3: Cross multiply
1,388,604.70x = 2,082,887.61 × 547,163.74 - Step 4: Simplify right side
1,388,604.70x = 1,139,680,574,687.26 - Step 5: Solve for x
x = 1,139,680,574,687.26/1,388,604.70 - Step 6: Final answer
x = 820,737.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.