Finding the Fourth Proportional to 743,150.99, 1,025,514.07 and 420,863.40
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Solution
The fourth proportional to 743,150.99, 1,025,514.07 and 420,863.40 is: 580,772.07
Step by Step Solution
- Step 1: Write the proportion equation
743,150.99 : 1,025,514.07 = 420,863.40 : x - Step 2: Convert to fraction form
743,150.99/1,025,514.07 = 420,863.40/x - Step 3: Cross multiply
743,150.99x = 1,025,514.07 × 420,863.40 - Step 4: Simplify right side
743,150.99x = 431,601,337,195.88 - Step 5: Solve for x
x = 431,601,337,195.88/743,150.99 - Step 6: Final answer
x = 580,772.07
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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.