Finding the Fourth Proportional to 1,988,664.28, 2,743,202.50 and 1,253,330.44
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Solution
The fourth proportional to 1,988,664.28, 2,743,202.50 and 1,253,330.44 is: 1,728,868.58
Step by Step Solution
- Step 1: Write the proportion equation
1,988,664.28 : 2,743,202.50 = 1,253,330.44 : x - Step 2: Convert to fraction form
1,988,664.28/2,743,202.50 = 1,253,330.44/x - Step 3: Cross multiply
1,988,664.28x = 2,743,202.50 × 1,253,330.44 - Step 4: Simplify right side
1,988,664.28x = 3,438,139,196,334.10 - Step 5: Solve for x
x = 3,438,139,196,334.10/1,988,664.28 - Step 6: Final answer
x = 1,728,868.58
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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.