Finding the Fourth Proportional to 766,237.62, 1,057,415.39 and 422,075.13
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Solution
The fourth proportional to 766,237.62, 1,057,415.39 and 422,075.13 is: 582,467.80
Step by Step Solution
- Step 1: Write the proportion equation
766,237.62 : 1,057,415.39 = 422,075.13 : x - Step 2: Convert to fraction form
766,237.62/1,057,415.39 = 422,075.13/x - Step 3: Cross multiply
766,237.62x = 1,057,415.39 × 422,075.13 - Step 4: Simplify right side
766,237.62x = 446,308,738,198.25 - Step 5: Solve for x
x = 446,308,738,198.25/766,237.62 - Step 6: Final answer
x = 582,467.80
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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.