Finding the Fourth Proportional to 1,384,414.20, 2,072,474.10 and 823,159.80
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Solution
The fourth proportional to 1,384,414.20, 2,072,474.10 and 823,159.80 is: 1,232,273.81
Step by Step Solution
- Step 1: Write the proportion equation
1,384,414.20 : 2,072,474.10 = 823,159.80 : x - Step 2: Convert to fraction form
1,384,414.20/2,072,474.10 = 823,159.80/x - Step 3: Cross multiply
1,384,414.20x = 2,072,474.10 × 823,159.80 - Step 4: Simplify right side
1,384,414.20x = 1,705,977,365,661.18 - Step 5: Solve for x
x = 1,705,977,365,661.18/1,384,414.20 - Step 6: Final answer
x = 1,232,273.81
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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.