Finding the Fourth Proportional to 2,126,905.12, 3,189,291.60 and 706,463.20
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Solution
The fourth proportional to 2,126,905.12, 3,189,291.60 and 706,463.20 is: 1,059,340.70
Step by Step Solution
- Step 1: Write the proportion equation
2,126,905.12 : 3,189,291.60 = 706,463.20 : x - Step 2: Convert to fraction form
2,126,905.12/3,189,291.60 = 706,463.20/x - Step 3: Cross multiply
2,126,905.12x = 3,189,291.60 × 706,463.20 - Step 4: Simplify right side
2,126,905.12x = 2,253,117,149,469.12 - Step 5: Solve for x
x = 2,253,117,149,469.12/2,126,905.12 - Step 6: Final answer
x = 1,059,340.70
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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.