Finding the Fourth Proportional to 1,551,338.10, 2,135,973.44 and 1,318,273.44
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Solution
The fourth proportional to 1,551,338.10, 2,135,973.44 and 1,318,273.44 is: 1,815,076.32
Step by Step Solution
- Step 1: Write the proportion equation
1,551,338.10 : 2,135,973.44 = 1,318,273.44 : x - Step 2: Convert to fraction form
1,551,338.10/2,135,973.44 = 1,318,273.44/x - Step 3: Cross multiply
1,551,338.10x = 2,135,973.44 × 1,318,273.44 - Step 4: Simplify right side
1,551,338.10x = 2,815,797,047,906.07 - Step 5: Solve for x
x = 2,815,797,047,906.07/1,551,338.10 - Step 6: Final answer
x = 1,815,076.32
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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.