Finding the Fourth Proportional to 3,109,729.44, 4,289,959.68 and 1,819,771.20
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Solution
The fourth proportional to 3,109,729.44, 4,289,959.68 and 1,819,771.20 is: 2,510,425.82
Step by Step Solution
- Step 1: Write the proportion equation
3,109,729.44 : 4,289,959.68 = 1,819,771.20 : x - Step 2: Convert to fraction form
3,109,729.44/4,289,959.68 = 1,819,771.20/x - Step 3: Cross multiply
3,109,729.44x = 4,289,959.68 × 1,819,771.20 - Step 4: Simplify right side
3,109,729.44x = 7,806,745,074,825.22 - Step 5: Solve for x
x = 7,806,745,074,825.22/3,109,729.44 - Step 6: Final answer
x = 2,510,425.82
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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.