Finding the Fourth Proportional to 471,805.70, 707,708.55 and 378,493.70
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Solution
The fourth proportional to 471,805.70, 707,708.55 and 378,493.70 is: 567,740.55
Step by Step Solution
- Step 1: Write the proportion equation
471,805.70 : 707,708.55 = 378,493.70 : x - Step 2: Convert to fraction form
471,805.70/707,708.55 = 378,493.70/x - Step 3: Cross multiply
471,805.70x = 707,708.55 × 378,493.70 - Step 4: Simplify right side
471,805.70x = 267,863,227,611.14 - Step 5: Solve for x
x = 267,863,227,611.14/471,805.70 - Step 6: Final answer
x = 567,740.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.