Finding the Third Proportional to 389,668.50 and 809,950.50
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Solution
The third proportional to 389,668.50 and 809,950.50 is: 1,683,533.09
Step by Step Solution
- Step 1: Write the proportion equation
389,668.50 : 809,950.50 = 809,950.50 : x - Step 2: Convert to fraction form
389,668.50/809,950.50 = 809,950.50/x - Step 3: Cross multiply
389,668.50x = 809,950.50 × 809,950.50 - Step 4: Simplify right side
389,668.50x = 656,019,812,450.25 - Step 5: Solve for x
x = 656,019,812,450.25/389,668.50 - Step 6: Final answer
x = 1,683,533.09
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Why These Related Problems?
These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.