Finding the Third Proportional to 629 and 842.50
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Solution
The third proportional to 629 and 842.50 is: 1,128.47
Step by Step Solution
- Step 1: Write the proportion equation
629 : 842.50 = 842.50 : x - Step 2: Convert to fraction form
629/842.50 = 842.50/x - Step 3: Cross multiply
629x = 842.50 × 842.50 - Step 4: Simplify right side
629x = 709,806.25 - Step 5: Solve for x
x = 709,806.25/629 - Step 6: Final answer
x = 1,128.47
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Why These Related Problems?
These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.