Finding the Fourth Proportional to 819,245.21, 1,228,736.05 and 345,869.06
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Solution
The fourth proportional to 819,245.21, 1,228,736.05 and 345,869.06 is: 518,747.96
Step by Step Solution
- Step 1: Write the proportion equation
819,245.21 : 1,228,736.05 = 345,869.06 : x - Step 2: Convert to fraction form
819,245.21/1,228,736.05 = 345,869.06/x - Step 3: Cross multiply
819,245.21x = 1,228,736.05 × 345,869.06 - Step 4: Simplify right side
819,245.21x = 424,981,775,593.26 - Step 5: Solve for x
x = 424,981,775,593.26/819,245.21 - Step 6: Final answer
x = 518,747.96
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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.