Finding the Fourth Proportional to 772,497.97, 1,158,809.99 and 388,049.09
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Solution
The fourth proportional to 772,497.97, 1,158,809.99 and 388,049.09 is: 582,105.30
Step by Step Solution
- Step 1: Write the proportion equation
772,497.97 : 1,158,809.99 = 388,049.09 : x - Step 2: Convert to fraction form
772,497.97/1,158,809.99 = 388,049.09/x - Step 3: Cross multiply
772,497.97x = 1,158,809.99 × 388,049.09 - Step 4: Simplify right side
772,497.97x = 449,675,162,102.41 - Step 5: Solve for x
x = 449,675,162,102.41/772,497.97 - Step 6: Final answer
x = 582,105.30
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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.