Finding the Fourth Proportional to 3,438,189.76, 4,744,729.98 and 2,149,777.03
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Solution
The fourth proportional to 3,438,189.76, 4,744,729.98 and 2,149,777.03 is: 2,966,709.88
Step by Step Solution
- Step 1: Write the proportion equation
3,438,189.76 : 4,744,729.98 = 2,149,777.03 : x - Step 2: Convert to fraction form
3,438,189.76/4,744,729.98 = 2,149,777.03/x - Step 3: Cross multiply
3,438,189.76x = 4,744,729.98 × 2,149,777.03 - Step 4: Simplify right side
3,438,189.76x = 10,200,111,524,556.36 - Step 5: Solve for x
x = 10,200,111,524,556.36/3,438,189.76 - Step 6: Final answer
x = 2,966,709.88
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1.5x scale
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.