Finding the Fourth Proportional to 639,170.92, 882,040.26 and 352,690.84
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Solution
The fourth proportional to 639,170.92, 882,040.26 and 352,690.84 is: 486,704.75
Step by Step Solution
- Step 1: Write the proportion equation
639,170.92 : 882,040.26 = 352,690.84 : x - Step 2: Convert to fraction form
639,170.92/882,040.26 = 352,690.84/x - Step 3: Cross multiply
639,170.92x = 882,040.26 × 352,690.84 - Step 4: Simplify right side
639,170.92x = 311,087,520,213.22 - Step 5: Solve for x
x = 311,087,520,213.22/639,170.92 - Step 6: Final answer
x = 486,704.75
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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.