Finding the Fourth Proportional to 748,212.20, 1,122,809.34 and 274,901.48
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Solution
The fourth proportional to 748,212.20, 1,122,809.34 and 274,901.48 is: 412,532.63
Step by Step Solution
- Step 1: Write the proportion equation
748,212.20 : 1,122,809.34 = 274,901.48 : x - Step 2: Convert to fraction form
748,212.20/1,122,809.34 = 274,901.48/x - Step 3: Cross multiply
748,212.20x = 1,122,809.34 × 274,901.48 - Step 4: Simplify right side
748,212.20x = 308,661,949,323.82 - Step 5: Solve for x
x = 308,661,949,323.82/748,212.20 - Step 6: Final answer
x = 412,532.63
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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.