Finding the Fourth Proportional to 587,102.20, 810,449.10 and 396,373.96
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Solution
The fourth proportional to 587,102.20, 810,449.10 and 396,373.96 is: 547,163.54
Step by Step Solution
- Step 1: Write the proportion equation
587,102.20 : 810,449.10 = 396,373.96 : x - Step 2: Convert to fraction form
587,102.20/810,449.10 = 396,373.96/x - Step 3: Cross multiply
587,102.20x = 810,449.10 × 396,373.96 - Step 4: Simplify right side
587,102.20x = 321,240,919,145.44 - Step 5: Solve for x
x = 321,240,919,145.44/587,102.20 - Step 6: Final answer
x = 547,163.54
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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.