Finding the Fourth Proportional to 5,760,207.70, 8,640,311.55 and 1,972,431.70
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Solution
The fourth proportional to 5,760,207.70, 8,640,311.55 and 1,972,431.70 is: 2,958,647.55
Step by Step Solution
- Step 1: Write the proportion equation
5,760,207.70 : 8,640,311.55 = 1,972,431.70 : x - Step 2: Convert to fraction form
5,760,207.70/8,640,311.55 = 1,972,431.70/x - Step 3: Cross multiply
5,760,207.70x = 8,640,311.55 × 1,972,431.70 - Step 4: Simplify right side
5,760,207.70x = 17,042,424,399,096.14 - Step 5: Solve for x
x = 17,042,424,399,096.14/5,760,207.70 - Step 6: Final answer
x = 2,958,647.55
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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.