Finding the Fourth Proportional to 770,383.72, 1,154,949.25 and 321,438.99
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Solution
The fourth proportional to 770,383.72, 1,154,949.25 and 321,438.99 is: 481,897.15
Step by Step Solution
- Step 1: Write the proportion equation
770,383.72 : 1,154,949.25 = 321,438.99 : x - Step 2: Convert to fraction form
770,383.72/1,154,949.25 = 321,438.99/x - Step 3: Cross multiply
770,383.72x = 1,154,949.25 × 321,438.99 - Step 4: Simplify right side
770,383.72x = 371,245,720,421.26 - Step 5: Solve for x
x = 371,245,720,421.26/770,383.72 - Step 6: Final answer
x = 481,897.15
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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.