Finding the Fourth Proportional to 456,478.14, 684,879.30 and 203,735.64
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Solution
The fourth proportional to 456,478.14, 684,879.30 and 203,735.64 is: 305,675.80
Step by Step Solution
- Step 1: Write the proportion equation
456,478.14 : 684,879.30 = 203,735.64 : x - Step 2: Convert to fraction form
456,478.14/684,879.30 = 203,735.64/x - Step 3: Cross multiply
456,478.14x = 684,879.30 × 203,735.64 - Step 4: Simplify right side
456,478.14x = 139,534,322,508.25 - Step 5: Solve for x
x = 139,534,322,508.25/456,478.14 - Step 6: Final answer
x = 305,675.80
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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.