Finding the Fourth Proportional to 1,533,764.16, 2,117,721.24 and 990,217.44
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Solution
The fourth proportional to 1,533,764.16, 2,117,721.24 and 990,217.44 is: 1,367,227.48
Step by Step Solution
- Step 1: Write the proportion equation
1,533,764.16 : 2,117,721.24 = 990,217.44 : x - Step 2: Convert to fraction form
1,533,764.16/2,117,721.24 = 990,217.44/x - Step 3: Cross multiply
1,533,764.16x = 2,117,721.24 × 990,217.44 - Step 4: Simplify right side
1,533,764.16x = 2,097,004,504,906.43 - Step 5: Solve for x
x = 2,097,004,504,906.43/1,533,764.16 - Step 6: Final answer
x = 1,367,227.48
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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.