Finding the Fourth Proportional to 456,412.97, 629,801.42 and 252,431.48
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Solution
The fourth proportional to 456,412.97, 629,801.42 and 252,431.48 is: 348,328.63
Step by Step Solution
- Step 1: Write the proportion equation
456,412.97 : 629,801.42 = 252,431.48 : x - Step 2: Convert to fraction form
456,412.97/629,801.42 = 252,431.48/x - Step 3: Cross multiply
456,412.97x = 629,801.42 × 252,431.48 - Step 4: Simplify right side
456,412.97x = 158,981,704,869.05 - Step 5: Solve for x
x = 158,981,704,869.05/456,412.97 - Step 6: Final answer
x = 348,328.63
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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.