Finding the Fourth Proportional to 455,690.24, 683,147.62 and 278,321.68
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Solution
The fourth proportional to 455,690.24, 683,147.62 and 278,321.68 is: 417,245.70
Step by Step Solution
- Step 1: Write the proportion equation
455,690.24 : 683,147.62 = 278,321.68 : x - Step 2: Convert to fraction form
455,690.24/683,147.62 = 278,321.68/x - Step 3: Cross multiply
455,690.24x = 683,147.62 × 278,321.68 - Step 4: Simplify right side
455,690.24x = 190,134,793,286.40 - Step 5: Solve for x
x = 190,134,793,286.40/455,690.24 - Step 6: Final answer
x = 417,245.70
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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.