Finding the Fourth Proportional to 529,610.40, 793,378.80 and 318,621.60
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Solution
The fourth proportional to 529,610.40, 793,378.80 and 318,621.60 is: 477,308.65
Step by Step Solution
- Step 1: Write the proportion equation
529,610.40 : 793,378.80 = 318,621.60 : x - Step 2: Convert to fraction form
529,610.40/793,378.80 = 318,621.60/x - Step 3: Cross multiply
529,610.40x = 793,378.80 × 318,621.60 - Step 4: Simplify right side
529,610.40x = 252,787,622,662.08 - Step 5: Solve for x
x = 252,787,622,662.08/529,610.40 - Step 6: Final answer
x = 477,308.65
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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.