Finding the Fourth Proportional to 608,745.20, 913,117.80 and 276,321.20
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Solution
The fourth proportional to 608,745.20, 913,117.80 and 276,321.20 is: 414,481.80
Step by Step Solution
- Step 1: Write the proportion equation
608,745.20 : 913,117.80 = 276,321.20 : x - Step 2: Convert to fraction form
608,745.20/913,117.80 = 276,321.20/x - Step 3: Cross multiply
608,745.20x = 913,117.80 × 276,321.20 - Step 4: Simplify right side
608,745.20x = 252,313,806,237.36 - Step 5: Solve for x
x = 252,313,806,237.36/608,745.20 - Step 6: Final answer
x = 414,481.80
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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.