Finding the Third Proportional to 520 and 939
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Solution
The third proportional to 520 and 939 is: 1,695.62
Step by Step Solution
- Step 1: Write the proportion equation
520 : 939 = 939 : x - Step 2: Convert to fraction form
520/939 = 939/x - Step 3: Cross multiply
520x = 939 × 939 - Step 4: Simplify right side
520x = 881,721 - Step 5: Solve for x
x = 881,721/520 - Step 6: Final answer
x = 1,695.62
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Why These Related Problems?
These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.