Finding the Fourth Proportional to 2,189,556.60, 3,284,334.90 and 2,065,553.70
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Solution
The fourth proportional to 2,189,556.60, 3,284,334.90 and 2,065,553.70 is: 3,098,330.55
Step by Step Solution
- Step 1: Write the proportion equation
2,189,556.60 : 3,284,334.90 = 2,065,553.70 : x - Step 2: Convert to fraction form
2,189,556.60/3,284,334.90 = 2,065,553.70/x - Step 3: Cross multiply
2,189,556.60x = 3,284,334.90 × 2,065,553.70 - Step 4: Simplify right side
2,189,556.60x = 6,783,970,104,734.13 - Step 5: Solve for x
x = 6,783,970,104,734.13/2,189,556.60 - Step 6: Final answer
x = 3,098,330.55
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Double scale
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Similar ratio
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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.