Finding the Third Proportional to 386,378.53 and 829,889.06
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Solution
The third proportional to 386,378.53 and 829,889.06 is: 1,782,489.97
Step by Step Solution
- Step 1: Write the proportion equation
386,378.53 : 829,889.06 = 829,889.06 : x - Step 2: Convert to fraction form
386,378.53/829,889.06 = 829,889.06/x - Step 3: Cross multiply
386,378.53x = 829,889.06 × 829,889.06 - Step 4: Simplify right side
386,378.53x = 688,715,856,057.13 - Step 5: Solve for x
x = 688,715,856,057.13/386,378.53 - Step 6: Final answer
x = 1,782,489.97
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.