Finding the Fourth Proportional to 1,321,752.24, 1,982,630.25 and 324,480.24
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Solution
The fourth proportional to 1,321,752.24, 1,982,630.25 and 324,480.24 is: 486,720.82
Step by Step Solution
- Step 1: Write the proportion equation
1,321,752.24 : 1,982,630.25 = 324,480.24 : x - Step 2: Convert to fraction form
1,321,752.24/1,982,630.25 = 324,480.24/x - Step 3: Cross multiply
1,321,752.24x = 1,982,630.25 × 324,480.24 - Step 4: Simplify right side
1,321,752.24x = 643,324,339,351.26 - Step 5: Solve for x
x = 643,324,339,351.26/1,321,752.24 - Step 6: Final answer
x = 486,720.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.