Finding the Fourth Proportional to 2,105,771.20, 2,905,955.04 and 1,138,902.64
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Solution
The fourth proportional to 2,105,771.20, 2,905,955.04 and 1,138,902.64 is: 1,571,680.66
Step by Step Solution
- Step 1: Write the proportion equation
2,105,771.20 : 2,905,955.04 = 1,138,902.64 : x - Step 2: Convert to fraction form
2,105,771.20/2,905,955.04 = 1,138,902.64/x - Step 3: Cross multiply
2,105,771.20x = 2,905,955.04 × 1,138,902.64 - Step 4: Simplify right side
2,105,771.20x = 3,309,599,866,777.31 - Step 5: Solve for x
x = 3,309,599,866,777.31/2,105,771.20 - Step 6: Final answer
x = 1,571,680.66
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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.