Finding the Fourth Proportional to 548,555.70, 822,833.55 and 455,243.70
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Solution
The fourth proportional to 548,555.70, 822,833.55 and 455,243.70 is: 682,865.55
Step by Step Solution
- Step 1: Write the proportion equation
548,555.70 : 822,833.55 = 455,243.70 : x - Step 2: Convert to fraction form
548,555.70/822,833.55 = 455,243.70/x - Step 3: Cross multiply
548,555.70x = 822,833.55 × 455,243.70 - Step 4: Simplify right side
548,555.70x = 374,589,789,786.14 - Step 5: Solve for x
x = 374,589,789,786.14/548,555.70 - Step 6: Final answer
x = 682,865.55
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Similar ratio
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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.