Finding the Fourth Proportional to 393,709.28, 590,657.97 and 127,470.07
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Solution
The fourth proportional to 393,709.28, 590,657.97 and 127,470.07 is: 191,235.56
Step by Step Solution
- Step 1: Write the proportion equation
393,709.28 : 590,657.97 = 127,470.07 : x - Step 2: Convert to fraction form
393,709.28/590,657.97 = 127,470.07/x - Step 3: Cross multiply
393,709.28x = 590,657.97 × 127,470.07 - Step 4: Simplify right side
393,709.28x = 75,291,212,781.96 - Step 5: Solve for x
x = 75,291,212,781.96/393,709.28 - Step 6: Final answer
x = 191,235.56
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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.