Finding the Fourth Proportional to 738,469.74, 1,019,169.74 and 428,440.62
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Solution
The fourth proportional to 738,469.74, 1,019,169.74 and 428,440.62 is: 591,295.34
Step by Step Solution
- Step 1: Write the proportion equation
738,469.74 : 1,019,169.74 = 428,440.62 : x - Step 2: Convert to fraction form
738,469.74/1,019,169.74 = 428,440.62/x - Step 3: Cross multiply
738,469.74x = 1,019,169.74 × 428,440.62 - Step 4: Simplify right side
738,469.74x = 436,653,713,148.64 - Step 5: Solve for x
x = 436,653,713,148.64/738,469.74 - Step 6: Final answer
x = 591,295.34
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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.