Finding the Fourth Proportional to 531,113.20, 796,669.80 and 489,122.80
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Solution
The fourth proportional to 531,113.20, 796,669.80 and 489,122.80 is: 733,684.20
Step by Step Solution
- Step 1: Write the proportion equation
531,113.20 : 796,669.80 = 489,122.80 : x - Step 2: Convert to fraction form
531,113.20/796,669.80 = 489,122.80/x - Step 3: Cross multiply
531,113.20x = 796,669.80 × 489,122.80 - Step 4: Simplify right side
531,113.20x = 389,669,363,251.44 - Step 5: Solve for x
x = 389,669,363,251.44/531,113.20 - Step 6: Final answer
x = 733,684.20
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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.