Finding the Third Proportional to 338,431.50 and 721,899
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Solution
The third proportional to 338,431.50 and 721,899 is: 1,539,863.06
Step by Step Solution
- Step 1: Write the proportion equation
338,431.50 : 721,899 = 721,899 : x - Step 2: Convert to fraction form
338,431.50/721,899 = 721,899/x - Step 3: Cross multiply
338,431.50x = 721,899 × 721,899 - Step 4: Simplify right side
338,431.50x = 521,138,166,201 - Step 5: Solve for x
x = 521,138,166,201/338,431.50 - Step 6: Final answer
x = 1,539,863.06
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Why These Related Problems?
These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.