Finding the Fourth Proportional to 768,753.96, 1,152,474.84 and 543,405.48
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Solution
The fourth proportional to 768,753.96, 1,152,474.84 and 543,405.48 is: 814,644.45
Step by Step Solution
- Step 1: Write the proportion equation
768,753.96 : 1,152,474.84 = 543,405.48 : x - Step 2: Convert to fraction form
768,753.96/1,152,474.84 = 543,405.48/x - Step 3: Cross multiply
768,753.96x = 1,152,474.84 × 543,405.48 - Step 4: Simplify right side
768,753.96x = 626,261,143,618.12 - Step 5: Solve for x
x = 626,261,143,618.12/768,753.96 - Step 6: Final answer
x = 814,644.45
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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.