Finding the Fourth Proportional to 511,132.26, 765,715.74 and 285,809.29
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Solution
The fourth proportional to 511,132.26, 765,715.74 and 285,809.29 is: 428,164.47
Step by Step Solution
- Step 1: Write the proportion equation
511,132.26 : 765,715.74 = 285,809.29 : x - Step 2: Convert to fraction form
511,132.26/765,715.74 = 285,809.29/x - Step 3: Cross multiply
511,132.26x = 765,715.74 × 285,809.29 - Step 4: Simplify right side
511,132.26x = 218,848,671,991.23 - Step 5: Solve for x
x = 218,848,671,991.23/511,132.26 - Step 6: Final answer
x = 428,164.47
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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.