Finding the Fourth Proportional to 809,336.20, 1,214,004.30 and 276,809.80
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Solution
The fourth proportional to 809,336.20, 1,214,004.30 and 276,809.80 is: 415,214.70
Step by Step Solution
- Step 1: Write the proportion equation
809,336.20 : 1,214,004.30 = 276,809.80 : x - Step 2: Convert to fraction form
809,336.20/1,214,004.30 = 276,809.80/x - Step 3: Cross multiply
809,336.20x = 1,214,004.30 × 276,809.80 - Step 4: Simplify right side
809,336.20x = 336,048,287,482.14 - Step 5: Solve for x
x = 336,048,287,482.14/809,336.20 - Step 6: Final answer
x = 415,214.70
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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.