Finding the Fourth Proportional to 2,168,365.92, 2,992,362.68 and 1,201,512.36
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Solution
The fourth proportional to 2,168,365.92, 2,992,362.68 and 1,201,512.36 is: 1,658,096.87
Step by Step Solution
- Step 1: Write the proportion equation
2,168,365.92 : 2,992,362.68 = 1,201,512.36 : x - Step 2: Convert to fraction form
2,168,365.92/2,992,362.68 = 1,201,512.36/x - Step 3: Cross multiply
2,168,365.92x = 2,992,362.68 × 1,201,512.36 - Step 4: Simplify right side
2,168,365.92x = 3,595,360,745,622.73 - Step 5: Solve for x
x = 3,595,360,745,622.73/2,168,365.92 - Step 6: Final answer
x = 1,658,096.87
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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.