Finding the Fourth Proportional to 738,469.24, 1,019,169.05 and 428,440.12
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Solution
The fourth proportional to 738,469.24, 1,019,169.05 and 428,440.12 is: 591,294.65
Step by Step Solution
- Step 1: Write the proportion equation
738,469.24 : 1,019,169.05 = 428,440.12 : x - Step 2: Convert to fraction form
738,469.24/1,019,169.05 = 428,440.12/x - Step 3: Cross multiply
738,469.24x = 1,019,169.05 × 428,440.12 - Step 4: Simplify right side
738,469.24x = 436,652,907,940.09 - Step 5: Solve for x
x = 436,652,907,940.09/738,469.24 - Step 6: Final answer
x = 591,294.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.