Finding the Fourth Proportional to 1,338,466.09, 2,007,804.39 and 378,906.18
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Solution
The fourth proportional to 1,338,466.09, 2,007,804.39 and 378,906.18 is: 568,389.07
Step by Step Solution
- Step 1: Write the proportion equation
1,338,466.09 : 2,007,804.39 = 378,906.18 : x - Step 2: Convert to fraction form
1,338,466.09/2,007,804.39 = 378,906.18/x - Step 3: Cross multiply
1,338,466.09x = 2,007,804.39 × 378,906.18 - Step 4: Simplify right side
1,338,466.09x = 760,769,491,602.13 - Step 5: Solve for x
x = 760,769,491,602.13/1,338,466.09 - Step 6: Final answer
x = 568,389.07
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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.