Finding the Fourth Proportional to 1,387,183.70, 2,080,775.55 and 440,650.10
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Solution
The fourth proportional to 1,387,183.70, 2,080,775.55 and 440,650.10 is: 660,975.15
Step by Step Solution
- Step 1: Write the proportion equation
1,387,183.70 : 2,080,775.55 = 440,650.10 : x - Step 2: Convert to fraction form
1,387,183.70/2,080,775.55 = 440,650.10/x - Step 3: Cross multiply
1,387,183.70x = 2,080,775.55 × 440,650.10 - Step 4: Simplify right side
1,387,183.70x = 916,893,954,185.06 - Step 5: Solve for x
x = 916,893,954,185.06/1,387,183.70 - Step 6: Final answer
x = 660,975.15
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1.5x scale
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.