Finding the Fourth Proportional to 4,250,847.20, 6,376,270.80 and 1,728,312.80
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Solution
The fourth proportional to 4,250,847.20, 6,376,270.80 and 1,728,312.80 is: 2,592,469.20
Step by Step Solution
- Step 1: Write the proportion equation
4,250,847.20 : 6,376,270.80 = 1,728,312.80 : x - Step 2: Convert to fraction form
4,250,847.20/6,376,270.80 = 1,728,312.80/x - Step 3: Cross multiply
4,250,847.20x = 6,376,270.80 × 1,728,312.80 - Step 4: Simplify right side
4,250,847.20x = 11,020,190,439,906.24 - Step 5: Solve for x
x = 11,020,190,439,906.24/4,250,847.20 - Step 6: Final answer
x = 2,592,469.20
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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.