Finding the Fourth Proportional to 769,721.67, 1,062,213.25 and 430,189.92
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Solution
The fourth proportional to 769,721.67, 1,062,213.25 and 430,189.92 is: 593,660.60
Step by Step Solution
- Step 1: Write the proportion equation
769,721.67 : 1,062,213.25 = 430,189.92 : x - Step 2: Convert to fraction form
769,721.67/1,062,213.25 = 430,189.92/x - Step 3: Cross multiply
769,721.67x = 1,062,213.25 × 430,189.92 - Step 4: Simplify right side
769,721.67x = 456,953,430,889.49 - Step 5: Solve for x
x = 456,953,430,889.49/769,721.67 - Step 6: Final answer
x = 593,660.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.