Finding the Fourth Proportional to 920,182.20, 1,269,826.68 and 512,284.08
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Solution
The fourth proportional to 920,182.20, 1,269,826.68 and 512,284.08 is: 706,938.25
Step by Step Solution
- Step 1: Write the proportion equation
920,182.20 : 1,269,826.68 = 512,284.08 : x - Step 2: Convert to fraction form
920,182.20/1,269,826.68 = 512,284.08/x - Step 3: Cross multiply
920,182.20x = 1,269,826.68 × 512,284.08 - Step 4: Simplify right side
920,182.20x = 650,511,992,523.25 - Step 5: Solve for x
x = 650,511,992,523.25/920,182.20 - Step 6: Final answer
x = 706,938.25
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.