Finding the Fourth Proportional to 766,282.62, 1,057,553.09 and 422,153.81
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Solution
The fourth proportional to 766,282.62, 1,057,553.09 and 422,153.81 is: 582,618.03
Step by Step Solution
- Step 1: Write the proportion equation
766,282.62 : 1,057,553.09 = 422,153.81 : x - Step 2: Convert to fraction form
766,282.62/1,057,553.09 = 422,153.81/x - Step 3: Cross multiply
766,282.62x = 1,057,553.09 × 422,153.81 - Step 4: Simplify right side
766,282.62x = 446,450,069,920.04 - Step 5: Solve for x
x = 446,450,069,920.04/766,282.62 - Step 6: Final answer
x = 582,618.03
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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.