Finding the Fourth Proportional to 920,101.24, 1,269,799.50 and 512,198.20
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Solution
The fourth proportional to 920,101.24, 1,269,799.50 and 512,198.20 is: 706,866.80
Step by Step Solution
- Step 1: Write the proportion equation
920,101.24 : 1,269,799.50 = 512,198.20 : x - Step 2: Convert to fraction form
920,101.24/1,269,799.50 = 512,198.20/x - Step 3: Cross multiply
920,101.24x = 1,269,799.50 × 512,198.20 - Step 4: Simplify right side
920,101.24x = 650,389,018,260.90 - Step 5: Solve for x
x = 650,389,018,260.90/920,101.24 - Step 6: Final answer
x = 706,866.80
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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.