Finding the Fourth Proportional to 772,496.97, 1,158,808.49 and 388,048.09
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Solution
The fourth proportional to 772,496.97, 1,158,808.49 and 388,048.09 is: 582,103.80
Step by Step Solution
- Step 1: Write the proportion equation
772,496.97 : 1,158,808.49 = 388,048.09 : x - Step 2: Convert to fraction form
772,496.97/1,158,808.49 = 388,048.09/x - Step 3: Cross multiply
772,496.97x = 1,158,808.49 × 388,048.09 - Step 4: Simplify right side
772,496.97x = 449,673,421,220.28 - Step 5: Solve for x
x = 449,673,421,220.28/772,496.97 - Step 6: Final answer
x = 582,103.80
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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.