Finding the Fourth Proportional to 405,919.74, 608,867.01 and 192,840.99
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Solution
The fourth proportional to 405,919.74, 608,867.01 and 192,840.99 is: 289,255.50
Step by Step Solution
- Step 1: Write the proportion equation
405,919.74 : 608,867.01 = 192,840.99 : x - Step 2: Convert to fraction form
405,919.74/608,867.01 = 192,840.99/x - Step 3: Cross multiply
405,919.74x = 608,867.01 × 192,840.99 - Step 4: Simplify right side
405,919.74x = 117,414,516,986.74 - Step 5: Solve for x
x = 117,414,516,986.74/405,919.74 - Step 6: Final answer
x = 289,255.50
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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.