Finding the Fourth Proportional to 985,285.80, 1,477,928.70 and 512,893.80
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Solution
The fourth proportional to 985,285.80, 1,477,928.70 and 512,893.80 is: 769,340.70
Step by Step Solution
- Step 1: Write the proportion equation
985,285.80 : 1,477,928.70 = 512,893.80 : x - Step 2: Convert to fraction form
985,285.80/1,477,928.70 = 512,893.80/x - Step 3: Cross multiply
985,285.80x = 1,477,928.70 × 512,893.80 - Step 4: Simplify right side
985,285.80x = 758,020,467,072.06 - Step 5: Solve for x
x = 758,020,467,072.06/985,285.80 - Step 6: Final answer
x = 769,340.70
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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.