Finding the Fourth Proportional to 4,119,568.20, 6,179,352.30 and 1,279,657.80
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Solution
The fourth proportional to 4,119,568.20, 6,179,352.30 and 1,279,657.80 is: 1,919,486.70
Step by Step Solution
- Step 1: Write the proportion equation
4,119,568.20 : 6,179,352.30 = 1,279,657.80 : x - Step 2: Convert to fraction form
4,119,568.20/6,179,352.30 = 1,279,657.80/x - Step 3: Cross multiply
4,119,568.20x = 6,179,352.30 × 1,279,657.80 - Step 4: Simplify right side
4,119,568.20x = 7,907,456,369,642.94 - Step 5: Solve for x
x = 7,907,456,369,642.94/4,119,568.20 - Step 6: Final answer
x = 1,919,486.70
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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.