Finding the Fourth Proportional to 863,021.29, 1,294,583.84 and 263,987.63
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Solution
The fourth proportional to 863,021.29, 1,294,583.84 and 263,987.63 is: 395,997.33
Step by Step Solution
- Step 1: Write the proportion equation
863,021.29 : 1,294,583.84 = 263,987.63 : x - Step 2: Convert to fraction form
863,021.29/1,294,583.84 = 263,987.63/x - Step 3: Cross multiply
863,021.29x = 1,294,583.84 × 263,987.63 - Step 4: Simplify right side
863,021.29x = 341,754,123,642.43 - Step 5: Solve for x
x = 341,754,123,642.43/863,021.29 - Step 6: Final answer
x = 395,997.33
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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.