Finding the Fourth Proportional to 645,481.99, 967,337.20 and 408,400.26
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Solution
The fourth proportional to 645,481.99, 967,337.20 and 408,400.26 is: 612,039.95
Step by Step Solution
- Step 1: Write the proportion equation
645,481.99 : 967,337.20 = 408,400.26 : x - Step 2: Convert to fraction form
645,481.99/967,337.20 = 408,400.26/x - Step 3: Cross multiply
645,481.99x = 967,337.20 × 408,400.26 - Step 4: Simplify right side
645,481.99x = 395,060,763,987.67 - Step 5: Solve for x
x = 395,060,763,987.67/645,481.99 - Step 6: Final answer
x = 612,039.95
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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.