Finding the Fourth Proportional to 400,743.99, 600,939.81 and 120,195.63
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Solution
The fourth proportional to 400,743.99, 600,939.81 and 120,195.63 is: 180,240.60
Step by Step Solution
- Step 1: Write the proportion equation
400,743.99 : 600,939.81 = 120,195.63 : x - Step 2: Convert to fraction form
400,743.99/600,939.81 = 120,195.63/x - Step 3: Cross multiply
400,743.99x = 600,939.81 × 120,195.63 - Step 4: Simplify right side
400,743.99x = 72,230,339,055.03 - Step 5: Solve for x
x = 72,230,339,055.03/400,743.99 - Step 6: Final answer
x = 180,240.60
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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.