Finding the Fourth Proportional to 519,742.75, 717,245.00 and 281,278.75
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Solution
The fourth proportional to 519,742.75, 717,245.00 and 281,278.75 is: 388,164.68
Step by Step Solution
- Step 1: Write the proportion equation
519,742.75 : 717,245.00 = 281,278.75 : x - Step 2: Convert to fraction form
519,742.75/717,245.00 = 281,278.75/x - Step 3: Cross multiply
519,742.75x = 717,245.00 × 281,278.75 - Step 4: Simplify right side
519,742.75x = 201,745,775,637.36 - Step 5: Solve for x
x = 201,745,775,637.36/519,742.75 - Step 6: Final answer
x = 388,164.68
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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.