Finding the Fourth Proportional to 397,556.20, 596,660.70 and 394,445.80
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Solution
The fourth proportional to 397,556.20, 596,660.70 and 394,445.80 is: 591,992.55
Step by Step Solution
- Step 1: Write the proportion equation
397,556.20 : 596,660.70 = 394,445.80 : x - Step 2: Convert to fraction form
397,556.20/596,660.70 = 394,445.80/x - Step 3: Cross multiply
397,556.20x = 596,660.70 × 394,445.80 - Step 4: Simplify right side
397,556.20x = 235,350,307,140.06 - Step 5: Solve for x
x = 235,350,307,140.06/397,556.20 - Step 6: Final answer
x = 591,992.55
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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.