Finding the Fourth Proportional to 505,235.44, 697,230.60 and 278,880.88
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Solution
The fourth proportional to 505,235.44, 697,230.60 and 278,880.88 is: 384,858.76
Step by Step Solution
- Step 1: Write the proportion equation
505,235.44 : 697,230.60 = 278,880.88 : x - Step 2: Convert to fraction form
505,235.44/697,230.60 = 278,880.88/x - Step 3: Cross multiply
505,235.44x = 697,230.60 × 278,880.88 - Step 4: Simplify right side
505,235.44x = 194,444,283,290.93 - Step 5: Solve for x
x = 194,444,283,290.93/505,235.44 - Step 6: Final answer
x = 384,858.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.