Finding the Fourth Proportional to 673,343.20, 929,212.56 and 371,536.96
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Solution
The fourth proportional to 673,343.20, 929,212.56 and 371,536.96 is: 512,720.42
Step by Step Solution
- Step 1: Write the proportion equation
673,343.20 : 929,212.56 = 371,536.96 : x - Step 2: Convert to fraction form
673,343.20/929,212.56 = 371,536.96/x - Step 3: Cross multiply
673,343.20x = 929,212.56 × 371,536.96 - Step 4: Simplify right side
673,343.20x = 345,236,809,736.22 - Step 5: Solve for x
x = 345,236,809,736.22/673,343.20 - Step 6: Final answer
x = 512,720.42
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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.