Finding the Fourth Proportional to 703,514.88, 970,898.16 and 397,485.12
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Solution
The fourth proportional to 703,514.88, 970,898.16 and 397,485.12 is: 548,556.37
Step by Step Solution
- Step 1: Write the proportion equation
703,514.88 : 970,898.16 = 397,485.12 : x - Step 2: Convert to fraction form
703,514.88/970,898.16 = 397,485.12/x - Step 3: Cross multiply
703,514.88x = 970,898.16 × 397,485.12 - Step 4: Simplify right side
703,514.88x = 385,917,571,635.38 - Step 5: Solve for x
x = 385,917,571,635.38/703,514.88 - Step 6: Final answer
x = 548,556.37
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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.