Finding the Fourth Proportional to 5,780,786.90, 7,977,975.81 and 3,203,276.18
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Solution
The fourth proportional to 5,780,786.90, 7,977,975.81 and 3,203,276.18 is: 4,420,792.59
Step by Step Solution
- Step 1: Write the proportion equation
5,780,786.90 : 7,977,975.81 = 3,203,276.18 : x - Step 2: Convert to fraction form
5,780,786.90/7,977,975.81 = 3,203,276.18/x - Step 3: Cross multiply
5,780,786.90x = 7,977,975.81 × 3,203,276.18 - Step 4: Simplify right side
5,780,786.90x = 25,555,659,876,789.21 - Step 5: Solve for x
x = 25,555,659,876,789.21/5,780,786.90 - Step 6: Final answer
x = 4,420,792.59
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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.