Finding the Fourth Proportional to 4,740,786.58, 6,542,315.69 and 2,780,264.91
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Solution
The fourth proportional to 4,740,786.58, 6,542,315.69 and 2,780,264.91 is: 3,836,783.29
Step by Step Solution
- Step 1: Write the proportion equation
4,740,786.58 : 6,542,315.69 = 2,780,264.91 : x - Step 2: Convert to fraction form
4,740,786.58/6,542,315.69 = 2,780,264.91/x - Step 3: Cross multiply
4,740,786.58x = 6,542,315.69 × 2,780,264.91 - Step 4: Simplify right side
4,740,786.58x = 18,189,370,743,049.44 - Step 5: Solve for x
x = 18,189,370,743,049.44/4,740,786.58 - Step 6: Final answer
x = 3,836,783.29
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1.5x scale
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.