Finding the Fourth Proportional to 4,920,651.70, 7,380,977.55 and 3,660,939.70
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Solution
The fourth proportional to 4,920,651.70, 7,380,977.55 and 3,660,939.70 is: 5,491,409.55
Step by Step Solution
- Step 1: Write the proportion equation
4,920,651.70 : 7,380,977.55 = 3,660,939.70 : x - Step 2: Convert to fraction form
4,920,651.70/7,380,977.55 = 3,660,939.70/x - Step 3: Cross multiply
4,920,651.70x = 7,380,977.55 × 3,660,939.70 - Step 4: Simplify right side
4,920,651.70x = 27,021,313,737,603.73 - Step 5: Solve for x
x = 27,021,313,737,603.73/4,920,651.70 - Step 6: Final answer
x = 5,491,409.55
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1.5x scale
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.