Finding the Fourth Proportional to 854,079.16, 1,281,171.58 and 285,511.42
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Solution
The fourth proportional to 854,079.16, 1,281,171.58 and 285,511.42 is: 428,284.79
Step by Step Solution
- Step 1: Write the proportion equation
854,079.16 : 1,281,171.58 = 285,511.42 : x - Step 2: Convert to fraction form
854,079.16/1,281,171.58 = 285,511.42/x - Step 3: Cross multiply
854,079.16x = 1,281,171.58 × 285,511.42 - Step 4: Simplify right side
854,079.16x = 365,789,117,069.44 - Step 5: Solve for x
x = 365,789,117,069.44/854,079.16 - Step 6: Final answer
x = 428,284.79
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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.