Finding the Fourth Proportional to 509,627.70, 764,441.55 and 273,431.70
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Solution
The fourth proportional to 509,627.70, 764,441.55 and 273,431.70 is: 410,147.55
Step by Step Solution
- Step 1: Write the proportion equation
509,627.70 : 764,441.55 = 273,431.70 : x - Step 2: Convert to fraction form
509,627.70/764,441.55 = 273,431.70/x - Step 3: Cross multiply
509,627.70x = 764,441.55 × 273,431.70 - Step 4: Simplify right side
509,627.70x = 209,022,552,567.14 - Step 5: Solve for x
x = 209,022,552,567.14/509,627.70 - Step 6: Final answer
x = 410,147.55
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Similar ratio
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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.