Finding the Fourth Proportional to 2,012,120.92, 2,777,121.36 and 1,153,256.80
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Solution
The fourth proportional to 2,012,120.92, 2,777,121.36 and 1,153,256.80 is: 1,591,720.49
Step by Step Solution
- Step 1: Write the proportion equation
2,012,120.92 : 2,777,121.36 = 1,153,256.80 : x - Step 2: Convert to fraction form
2,012,120.92/2,777,121.36 = 1,153,256.80/x - Step 3: Cross multiply
2,012,120.92x = 2,777,121.36 × 1,153,256.80 - Step 4: Simplify right side
2,012,120.92x = 3,202,734,092,845.25 - Step 5: Solve for x
x = 3,202,734,092,845.25/2,012,120.92 - Step 6: Final answer
x = 1,591,720.49
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1.5x scale
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.