Finding the Fourth Proportional to 393,042.09, 589,563.28 and 123,191.18
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Solution
The fourth proportional to 393,042.09, 589,563.28 and 123,191.18 is: 184,786.82
Step by Step Solution
- Step 1: Write the proportion equation
393,042.09 : 589,563.28 = 123,191.18 : x - Step 2: Convert to fraction form
393,042.09/589,563.28 = 123,191.18/x - Step 3: Cross multiply
393,042.09x = 589,563.28 × 123,191.18 - Step 4: Simplify right side
393,042.09x = 72,628,996,147.87 - Step 5: Solve for x
x = 72,628,996,147.87/393,042.09 - Step 6: Final answer
x = 184,786.82
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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.