Finding the Third Proportional to 678,921.75 and 1,413,649.13
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Solution
The third proportional to 678,921.75 and 1,413,649.13 is: 2,943,496.58
Step by Step Solution
- Step 1: Write the proportion equation
678,921.75 : 1,413,649.13 = 1,413,649.13 : x - Step 2: Convert to fraction form
678,921.75/1,413,649.13 = 1,413,649.13/x - Step 3: Cross multiply
678,921.75x = 1,413,649.13 × 1,413,649.13 - Step 4: Simplify right side
678,921.75x = 1,998,403,848,613.27 - Step 5: Solve for x
x = 1,998,403,848,613.27/678,921.75 - Step 6: Final answer
x = 2,943,496.58
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Why These Related Problems?
These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.