Finding the Fourth Proportional to 1,945,129.20, 2,916,138.60 and 822,274.80
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Solution
The fourth proportional to 1,945,129.20, 2,916,138.60 and 822,274.80 is: 1,232,754.76
Step by Step Solution
- Step 1: Write the proportion equation
1,945,129.20 : 2,916,138.60 = 822,274.80 : x - Step 2: Convert to fraction form
1,945,129.20/2,916,138.60 = 822,274.80/x - Step 3: Cross multiply
1,945,129.20x = 2,916,138.60 × 822,274.80 - Step 4: Simplify right side
1,945,129.20x = 2,397,867,284,087.28 - Step 5: Solve for x
x = 2,397,867,284,087.28/1,945,129.20 - Step 6: Final answer
x = 1,232,754.76
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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.