Finding the Fourth Proportional to 2,258,721.44, 3,116,628.96 and 1,278,653.84
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Solution
The fourth proportional to 2,258,721.44, 3,116,628.96 and 1,278,653.84 is: 1,764,312.11
Step by Step Solution
- Step 1: Write the proportion equation
2,258,721.44 : 3,116,628.96 = 1,278,653.84 : x - Step 2: Convert to fraction form
2,258,721.44/3,116,628.96 = 1,278,653.84/x - Step 3: Cross multiply
2,258,721.44x = 3,116,628.96 × 1,278,653.84 - Step 4: Simplify right side
2,258,721.44x = 3,985,089,587,559.21 - Step 5: Solve for x
x = 3,985,089,587,559.21/2,258,721.44 - Step 6: Final answer
x = 1,764,312.11
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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.