Finding the Fourth Proportional to 823,900.20, 1,235,850.30 and 292,021.80
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Solution
The fourth proportional to 823,900.20, 1,235,850.30 and 292,021.80 is: 438,032.70
Step by Step Solution
- Step 1: Write the proportion equation
823,900.20 : 1,235,850.30 = 292,021.80 : x - Step 2: Convert to fraction form
823,900.20/1,235,850.30 = 292,021.80/x - Step 3: Cross multiply
823,900.20x = 1,235,850.30 × 292,021.80 - Step 4: Simplify right side
823,900.20x = 360,895,229,136.54 - Step 5: Solve for x
x = 360,895,229,136.54/823,900.20 - Step 6: Final answer
x = 438,032.70
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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.