Finding the Fourth Proportional to 1,147,368.24, 1,721,836.44 and 399,414.24
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Solution
The fourth proportional to 1,147,368.24, 1,721,836.44 and 399,414.24 is: 599,394.31
Step by Step Solution
- Step 1: Write the proportion equation
1,147,368.24 : 1,721,836.44 = 399,414.24 : x - Step 2: Convert to fraction form
1,147,368.24/1,721,836.44 = 399,414.24/x - Step 3: Cross multiply
1,147,368.24x = 1,721,836.44 × 399,414.24 - Step 4: Simplify right side
1,147,368.24x = 687,725,993,086.91 - Step 5: Solve for x
x = 687,725,993,086.91/1,147,368.24 - Step 6: Final answer
x = 599,394.31
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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.