Finding the Fourth Proportional to 4,253,247.80, 6,379,871.70 and 4,197,260.60
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Solution
The fourth proportional to 4,253,247.80, 6,379,871.70 and 4,197,260.60 is: 6,295,890.90
Step by Step Solution
- Step 1: Write the proportion equation
4,253,247.80 : 6,379,871.70 = 4,197,260.60 : x - Step 2: Convert to fraction form
4,253,247.80/6,379,871.70 = 4,197,260.60/x - Step 3: Cross multiply
4,253,247.80x = 6,379,871.70 × 4,197,260.60 - Step 4: Simplify right side
4,253,247.80x = 26,777,984,119,465.02 - Step 5: Solve for x
x = 26,777,984,119,465.02/4,253,247.80 - Step 6: Final answer
x = 6,295,890.90
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Double scale
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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.