Finding the Fourth Proportional to 3,939,286.80, 5,909,124.60 and 2,049,718.80
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Solution
The fourth proportional to 3,939,286.80, 5,909,124.60 and 2,049,718.80 is: 3,074,679.35
Step by Step Solution
- Step 1: Write the proportion equation
3,939,286.80 : 5,909,124.60 = 2,049,718.80 : x - Step 2: Convert to fraction form
3,939,286.80/5,909,124.60 = 2,049,718.80/x - Step 3: Cross multiply
3,939,286.80x = 5,909,124.60 × 2,049,718.80 - Step 4: Simplify right side
3,939,286.80x = 12,112,043,784,162.48 - Step 5: Solve for x
x = 12,112,043,784,162.48/3,939,286.80 - Step 6: Final answer
x = 3,074,679.35
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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.