Finding the Fourth Proportional to 2,165,629.62, 2,988,532.70 and 1,198,739.20
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Solution
The fourth proportional to 2,165,629.62, 2,988,532.70 and 1,198,739.20 is: 1,654,240.07
Step by Step Solution
- Step 1: Write the proportion equation
2,165,629.62 : 2,988,532.70 = 1,198,739.20 : x - Step 2: Convert to fraction form
2,165,629.62/2,988,532.70 = 1,198,739.20/x - Step 3: Cross multiply
2,165,629.62x = 2,988,532.70 × 1,198,739.20 - Step 4: Simplify right side
2,165,629.62x = 3,582,471,297,971.84 - Step 5: Solve for x
x = 3,582,471,297,971.84/2,165,629.62 - Step 6: Final answer
x = 1,654,240.07
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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.