Finding the Fourth Proportional to 2,780,325.42, 3,835,956.84 and 1,556,450.70
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Solution
The fourth proportional to 2,780,325.42, 3,835,956.84 and 1,556,450.70 is: 2,147,402.48
Step by Step Solution
- Step 1: Write the proportion equation
2,780,325.42 : 3,835,956.84 = 1,556,450.70 : x - Step 2: Convert to fraction form
2,780,325.42/3,835,956.84 = 1,556,450.70/x - Step 3: Cross multiply
2,780,325.42x = 3,835,956.84 × 1,556,450.70 - Step 4: Simplify right side
2,780,325.42x = 5,970,477,708,787.79 - Step 5: Solve for x
x = 5,970,477,708,787.79/2,780,325.42 - Step 6: Final answer
x = 2,147,402.48
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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.