Finding the Fourth Proportional to 1,202,295.13, 1,659,135.15 and 686,039.66
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Solution
The fourth proportional to 1,202,295.13, 1,659,135.15 and 686,039.66 is: 946,716.39
Step by Step Solution
- Step 1: Write the proportion equation
1,202,295.13 : 1,659,135.15 = 686,039.66 : x - Step 2: Convert to fraction form
1,202,295.13/1,659,135.15 = 686,039.66/x - Step 3: Cross multiply
1,202,295.13x = 1,659,135.15 × 686,039.66 - Step 4: Simplify right side
1,202,295.13x = 1,138,232,512,126.13 - Step 5: Solve for x
x = 1,138,232,512,126.13/1,202,295.13 - Step 6: Final answer
x = 946,716.39
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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.