Finding the Fourth Proportional to 531,107.20, 796,660.80 and 489,116.80
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Solution
The fourth proportional to 531,107.20, 796,660.80 and 489,116.80 is: 733,675.20
Step by Step Solution
- Step 1: Write the proportion equation
531,107.20 : 796,660.80 = 489,116.80 : x - Step 2: Convert to fraction form
531,107.20/796,660.80 = 489,116.80/x - Step 3: Cross multiply
531,107.20x = 796,660.80 × 489,116.80 - Step 4: Simplify right side
531,107.20x = 389,660,181,181.44 - Step 5: Solve for x
x = 389,660,181,181.44/531,107.20 - Step 6: Final answer
x = 733,675.20
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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.