Finding the Fourth Proportional to 2,738,509.20, 4,107,763.80 and 1,390,879.80
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Solution
The fourth proportional to 2,738,509.20, 4,107,763.80 and 1,390,879.80 is: 2,086,319.70
Step by Step Solution
- Step 1: Write the proportion equation
2,738,509.20 : 4,107,763.80 = 1,390,879.80 : x - Step 2: Convert to fraction form
2,738,509.20/4,107,763.80 = 1,390,879.80/x - Step 3: Cross multiply
2,738,509.20x = 4,107,763.80 × 1,390,879.80 - Step 4: Simplify right side
2,738,509.20x = 5,713,405,692,591.24 - Step 5: Solve for x
x = 5,713,405,692,591.24/2,738,509.20 - Step 6: Final answer
x = 2,086,319.70
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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.