Finding the Fourth Proportional to 522,352.80, 782,362.80 and 312,400.80
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Solution
The fourth proportional to 522,352.80, 782,362.80 and 312,400.80 is: 467,903.62
Step by Step Solution
- Step 1: Write the proportion equation
522,352.80 : 782,362.80 = 312,400.80 : x - Step 2: Convert to fraction form
522,352.80/782,362.80 = 312,400.80/x - Step 3: Cross multiply
522,352.80x = 782,362.80 × 312,400.80 - Step 4: Simplify right side
522,352.80x = 244,410,764,610.24 - Step 5: Solve for x
x = 244,410,764,610.24/522,352.80 - Step 6: Final answer
x = 467,903.62
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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.