Finding the Fourth Proportional to 619,882.75, 855,369.75 and 347,888.26
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Solution
The fourth proportional to 619,882.75, 855,369.75 and 347,888.26 is: 480,047.39
Step by Step Solution
- Step 1: Write the proportion equation
619,882.75 : 855,369.75 = 347,888.26 : x - Step 2: Convert to fraction form
619,882.75/855,369.75 = 347,888.26/x - Step 3: Cross multiply
619,882.75x = 855,369.75 × 347,888.26 - Step 4: Simplify right side
619,882.75x = 297,573,093,984.14 - Step 5: Solve for x
x = 297,573,093,984.14/619,882.75 - Step 6: Final answer
x = 480,047.39
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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.