Finding the Fourth Proportional to 759,649.81, 1,048,456.97 and 488,057.21
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Solution
The fourth proportional to 759,649.81, 1,048,456.97 and 488,057.21 is: 673,609.05
Step by Step Solution
- Step 1: Write the proportion equation
759,649.81 : 1,048,456.97 = 488,057.21 : x - Step 2: Convert to fraction form
759,649.81/1,048,456.97 = 488,057.21/x - Step 3: Cross multiply
759,649.81x = 1,048,456.97 × 488,057.21 - Step 4: Simplify right side
759,649.81x = 511,706,983,583.25 - Step 5: Solve for x
x = 511,706,983,583.25/759,649.81 - Step 6: Final answer
x = 673,609.05
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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.