Finding the Fourth Proportional to 2,078,783.70, 3,121,383.15 and 1,133,999.70
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Solution
The fourth proportional to 2,078,783.70, 3,121,383.15 and 1,133,999.70 is: 1,702,749.33
Step by Step Solution
- Step 1: Write the proportion equation
2,078,783.70 : 3,121,383.15 = 1,133,999.70 : x - Step 2: Convert to fraction form
2,078,783.70/3,121,383.15 = 1,133,999.70/x - Step 3: Cross multiply
2,078,783.70x = 3,121,383.15 × 1,133,999.70 - Step 4: Simplify right side
2,078,783.70x = 3,539,647,555,685.06 - Step 5: Solve for x
x = 3,539,647,555,685.06/2,078,783.70 - Step 6: Final answer
x = 1,702,749.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.