Finding the Fourth Proportional to 3,436,769.20, 5,142,906.60 and 2,992,370.80
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Solution
The fourth proportional to 3,436,769.20, 5,142,906.60 and 2,992,370.80 is: 4,477,892.65
Step by Step Solution
- Step 1: Write the proportion equation
3,436,769.20 : 5,142,906.60 = 2,992,370.80 : x - Step 2: Convert to fraction form
3,436,769.20/5,142,906.60 = 2,992,370.80/x - Step 3: Cross multiply
3,436,769.20x = 5,142,906.60 × 2,992,370.80 - Step 4: Simplify right side
3,436,769.20x = 15,389,483,536,967.28 - Step 5: Solve for x
x = 15,389,483,536,967.28/3,436,769.20 - Step 6: Final answer
x = 4,477,892.65
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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.