Finding the Fourth Proportional to 567,286.22, 782,855.10 and 309,163.23
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Solution
The fourth proportional to 567,286.22, 782,855.10 and 309,163.23 is: 426,645.32
Step by Step Solution
- Step 1: Write the proportion equation
567,286.22 : 782,855.10 = 309,163.23 : x - Step 2: Convert to fraction form
567,286.22/782,855.10 = 309,163.23/x - Step 3: Cross multiply
567,286.22x = 782,855.10 × 309,163.23 - Step 4: Simplify right side
567,286.22x = 242,030,011,337.97 - Step 5: Solve for x
x = 242,030,011,337.97/567,286.22 - Step 6: Final answer
x = 426,645.32
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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.