Finding the Fourth Proportional to 618,415.80, 927,623.70 and 303,487.80
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Solution
The fourth proportional to 618,415.80, 927,623.70 and 303,487.80 is: 455,231.70
Step by Step Solution
- Step 1: Write the proportion equation
618,415.80 : 927,623.70 = 303,487.80 : x - Step 2: Convert to fraction form
618,415.80/927,623.70 = 303,487.80/x - Step 3: Cross multiply
618,415.80x = 927,623.70 × 303,487.80 - Step 4: Simplify right side
618,415.80x = 281,522,475,940.86 - Step 5: Solve for x
x = 281,522,475,940.86/618,415.80 - Step 6: Final answer
x = 455,231.70
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1.5x scale
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.