Finding the Fourth Proportional to 661,790.99, 992,592.77 and 212,452.70
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Solution
The fourth proportional to 661,790.99, 992,592.77 and 212,452.70 is: 318,648.95
Step by Step Solution
- Step 1: Write the proportion equation
661,790.99 : 992,592.77 = 212,452.70 : x - Step 2: Convert to fraction form
661,790.99/992,592.77 = 212,452.70/x - Step 3: Cross multiply
661,790.99x = 992,592.77 × 212,452.70 - Step 4: Simplify right side
661,790.99x = 210,879,007,961.75 - Step 5: Solve for x
x = 210,879,007,961.75/661,790.99 - Step 6: Final answer
x = 318,648.95
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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.