Finding the Fourth Proportional to 741,144.21, 1,022,781.76 and 431,121.18
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Solution
The fourth proportional to 741,144.21, 1,022,781.76 and 431,121.18 is: 594,948.83
Step by Step Solution
- Step 1: Write the proportion equation
741,144.21 : 1,022,781.76 = 431,121.18 : x - Step 2: Convert to fraction form
741,144.21/1,022,781.76 = 431,121.18/x - Step 3: Cross multiply
741,144.21x = 1,022,781.76 × 431,121.18 - Step 4: Simplify right side
741,144.21x = 440,942,882,011.31 - Step 5: Solve for x
x = 440,942,882,011.31/741,144.21 - Step 6: Final answer
x = 594,948.83
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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.