Finding the Fourth Proportional to 858,672.10, 1,288,648.05 and 327,231.10
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Solution
The fourth proportional to 858,672.10, 1,288,648.05 and 327,231.10 is: 491,090.51
Step by Step Solution
- Step 1: Write the proportion equation
858,672.10 : 1,288,648.05 = 327,231.10 : x - Step 2: Convert to fraction form
858,672.10/1,288,648.05 = 327,231.10/x - Step 3: Cross multiply
858,672.10x = 1,288,648.05 × 327,231.10 - Step 4: Simplify right side
858,672.10x = 421,685,718,914.36 - Step 5: Solve for x
x = 421,685,718,914.36/858,672.10 - Step 6: Final answer
x = 491,090.51
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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.