Finding the Fourth Proportional to 764,028.64, 1,145,330.48 and 258,235.84
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Solution
The fourth proportional to 764,028.64, 1,145,330.48 and 258,235.84 is: 387,112.95
Step by Step Solution
- Step 1: Write the proportion equation
764,028.64 : 1,145,330.48 = 258,235.84 : x - Step 2: Convert to fraction form
764,028.64/1,145,330.48 = 258,235.84/x - Step 3: Cross multiply
764,028.64x = 1,145,330.48 × 258,235.84 - Step 4: Simplify right side
764,028.64x = 295,765,378,580.40 - Step 5: Solve for x
x = 295,765,378,580.40/764,028.64 - Step 6: Final answer
x = 387,112.95
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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.