Finding the Fourth Proportional to 823,660.29, 1,236,289.37 and 397,496.05
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Solution
The fourth proportional to 823,660.29, 1,236,289.37 and 397,496.05 is: 596,629.63
Step by Step Solution
- Step 1: Write the proportion equation
823,660.29 : 1,236,289.37 = 397,496.05 : x - Step 2: Convert to fraction form
823,660.29/1,236,289.37 = 397,496.05/x - Step 3: Cross multiply
823,660.29x = 1,236,289.37 × 397,496.05 - Step 4: Simplify right side
823,660.29x = 491,420,136,153.79 - Step 5: Solve for x
x = 491,420,136,153.79/823,660.29 - Step 6: Final answer
x = 596,629.63
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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.