Finding the Fourth Proportional to 505,197.20, 697,177.92 and 278,842.88
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Solution
The fourth proportional to 505,197.20, 697,177.92 and 278,842.88 is: 384,806.37
Step by Step Solution
- Step 1: Write the proportion equation
505,197.20 : 697,177.92 = 278,842.88 : x - Step 2: Convert to fraction form
505,197.20/697,177.92 = 278,842.88/x - Step 3: Cross multiply
505,197.20x = 697,177.92 × 278,842.88 - Step 4: Simplify right side
505,197.20x = 194,403,099,085.21 - Step 5: Solve for x
x = 194,403,099,085.21/505,197.20 - Step 6: Final answer
x = 384,806.37
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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.