Finding the Fourth Proportional to 512,997.72, 769,457.70 and 180,340.44
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Solution
The fourth proportional to 512,997.72, 769,457.70 and 180,340.44 is: 270,496.99
Step by Step Solution
- Step 1: Write the proportion equation
512,997.72 : 769,457.70 = 180,340.44 : x - Step 2: Convert to fraction form
512,997.72/769,457.70 = 180,340.44/x - Step 3: Cross multiply
512,997.72x = 769,457.70 × 180,340.44 - Step 4: Simplify right side
512,997.72x = 138,764,340,179.39 - Step 5: Solve for x
x = 138,764,340,179.39/512,997.72 - Step 6: Final answer
x = 270,496.99
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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.