Finding the Fourth Proportional to 522,672.97, 721,201.26 and 307,855.80
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Solution
The fourth proportional to 522,672.97, 721,201.26 and 307,855.80 is: 424,789.51
Step by Step Solution
- Step 1: Write the proportion equation
522,672.97 : 721,201.26 = 307,855.80 : x - Step 2: Convert to fraction form
522,672.97/721,201.26 = 307,855.80/x - Step 3: Cross multiply
522,672.97x = 721,201.26 × 307,855.80 - Step 4: Simplify right side
522,672.97x = 222,025,994,717.27 - Step 5: Solve for x
x = 222,025,994,717.27/522,672.97 - Step 6: Final answer
x = 424,789.51
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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.