Finding the Fourth Proportional to 393,710.68, 590,660.09 and 127,471.49
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Solution
The fourth proportional to 393,710.68, 590,660.09 and 127,471.49 is: 191,237.69
Step by Step Solution
- Step 1: Write the proportion equation
393,710.68 : 590,660.09 = 127,471.49 : x - Step 2: Convert to fraction form
393,710.68/590,660.09 = 127,471.49/x - Step 3: Cross multiply
393,710.68x = 590,660.09 × 127,471.49 - Step 4: Simplify right side
393,710.68x = 75,292,321,755.83 - Step 5: Solve for x
x = 75,292,321,755.83/393,710.68 - Step 6: Final answer
x = 191,237.69
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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.