Finding the Fourth Proportional to 1,126,982.99, 1,691,137.89 and 417,505.61
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Solution
The fourth proportional to 1,126,982.99, 1,691,137.89 and 417,505.61 is: 626,504.18
Step by Step Solution
- Step 1: Write the proportion equation
1,126,982.99 : 1,691,137.89 = 417,505.61 : x - Step 2: Convert to fraction form
1,126,982.99/1,691,137.89 = 417,505.61/x - Step 3: Cross multiply
1,126,982.99x = 1,691,137.89 × 417,505.61 - Step 4: Simplify right side
1,126,982.99x = 706,059,560,586.41 - Step 5: Solve for x
x = 706,059,560,586.41/1,126,982.99 - Step 6: Final answer
x = 626,504.18
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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.