Finding the Fourth Proportional to 1,202,455.07, 1,659,414.84 and 686,198.68
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Solution
The fourth proportional to 1,202,455.07, 1,659,414.84 and 686,198.68 is: 946,969.50
Step by Step Solution
- Step 1: Write the proportion equation
1,202,455.07 : 1,659,414.84 = 686,198.68 : x - Step 2: Convert to fraction form
1,202,455.07/1,659,414.84 = 686,198.68/x - Step 3: Cross multiply
1,202,455.07x = 1,659,414.84 × 686,198.68 - Step 4: Simplify right side
1,202,455.07x = 1,138,688,272,780.41 - Step 5: Solve for x
x = 1,138,688,272,780.41/1,202,455.07 - Step 6: Final answer
x = 946,969.50
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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.