Finding the Fourth Proportional to 864,489.38, 1,296,902.01 and 331,971.26
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Solution
The fourth proportional to 864,489.38, 1,296,902.01 and 331,971.26 is: 498,021.38
Step by Step Solution
- Step 1: Write the proportion equation
864,489.38 : 1,296,902.01 = 331,971.26 : x - Step 2: Convert to fraction form
864,489.38/1,296,902.01 = 331,971.26/x - Step 3: Cross multiply
864,489.38x = 1,296,902.01 × 331,971.26 - Step 4: Simplify right side
864,489.38x = 430,534,194,356.23 - Step 5: Solve for x
x = 430,534,194,356.23/864,489.38 - Step 6: Final answer
x = 498,021.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.