Finding the Fourth Proportional to 491,175.18, 677,814.99 and 276,315.18
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Solution
The fourth proportional to 491,175.18, 677,814.99 and 276,315.18 is: 381,311.15
Step by Step Solution
- Step 1: Write the proportion equation
491,175.18 : 677,814.99 = 276,315.18 : x - Step 2: Convert to fraction form
491,175.18/677,814.99 = 276,315.18/x - Step 3: Cross multiply
491,175.18x = 677,814.99 × 276,315.18 - Step 4: Simplify right side
491,175.18x = 187,290,570,968.55 - Step 5: Solve for x
x = 187,290,570,968.55/491,175.18 - Step 6: Final answer
x = 381,311.15
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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.