Finding the Fourth Proportional to 766,171.82, 1,057,324.23 and 422,008.99
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Solution
The fourth proportional to 766,171.82, 1,057,324.23 and 422,008.99 is: 582,376.33
Step by Step Solution
- Step 1: Write the proportion equation
766,171.82 : 1,057,324.23 = 422,008.99 : x - Step 2: Convert to fraction form
766,171.82/1,057,324.23 = 422,008.99/x - Step 3: Cross multiply
766,171.82x = 1,057,324.23 × 422,008.99 - Step 4: Simplify right side
766,171.82x = 446,200,333,708.97 - Step 5: Solve for x
x = 446,200,333,708.97/766,171.82 - Step 6: Final answer
x = 582,376.33
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1.5x scale
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.