Finding the Fourth Proportional to 1,809,074.62, 2,497,691.31 and 1,121,481.28
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Solution
The fourth proportional to 1,809,074.62, 2,497,691.31 and 1,121,481.28 is: 1,548,368.44
Step by Step Solution
- Step 1: Write the proportion equation
1,809,074.62 : 2,497,691.31 = 1,121,481.28 : x - Step 2: Convert to fraction form
1,809,074.62/2,497,691.31 = 1,121,481.28/x - Step 3: Cross multiply
1,809,074.62x = 2,497,691.31 × 1,121,481.28 - Step 4: Simplify right side
1,809,074.62x = 2,801,114,047,383.68 - Step 5: Solve for x
x = 2,801,114,047,383.68/1,809,074.62 - Step 6: Final answer
x = 1,548,368.44
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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.