Finding the Fourth Proportional to 809,350.20, 1,214,025.30 and 248,311.80
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Solution
The fourth proportional to 809,350.20, 1,214,025.30 and 248,311.80 is: 372,467.70
Step by Step Solution
- Step 1: Write the proportion equation
809,350.20 : 1,214,025.30 = 248,311.80 : x - Step 2: Convert to fraction form
809,350.20/1,214,025.30 = 248,311.80/x - Step 3: Cross multiply
809,350.20x = 1,214,025.30 × 248,311.80 - Step 4: Simplify right side
809,350.20x = 301,456,807,488.54 - Step 5: Solve for x
x = 301,456,807,488.54/809,350.20 - Step 6: Final answer
x = 372,467.70
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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.