Finding the Fourth Proportional to 509,786.06, 764,629.49 and 154,803.15
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Solution
The fourth proportional to 509,786.06, 764,629.49 and 154,803.15 is: 232,189.67
Step by Step Solution
- Step 1: Write the proportion equation
509,786.06 : 764,629.49 = 154,803.15 : x - Step 2: Convert to fraction form
509,786.06/764,629.49 = 154,803.15/x - Step 3: Cross multiply
509,786.06x = 764,629.49 × 154,803.15 - Step 4: Simplify right side
509,786.06x = 118,367,054,021.90 - Step 5: Solve for x
x = 118,367,054,021.90/509,786.06 - Step 6: Final answer
x = 232,189.67
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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.