Finding the Fourth Proportional to 748,354.26, 1,121,831.52 and 274,912.50
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Solution
The fourth proportional to 748,354.26, 1,121,831.52 and 274,912.50 is: 412,111.65
Step by Step Solution
- Step 1: Write the proportion equation
748,354.26 : 1,121,831.52 = 274,912.50 : x - Step 2: Convert to fraction form
748,354.26/1,121,831.52 = 274,912.50/x - Step 3: Cross multiply
748,354.26x = 1,121,831.52 × 274,912.50 - Step 4: Simplify right side
748,354.26x = 308,405,507,742 - Step 5: Solve for x
x = 308,405,507,742/748,354.26 - Step 6: Final answer
x = 412,111.65
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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.