Finding the Fourth Proportional to 764,912.40, 1,055,560.68 and 416,043.84
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Solution
The fourth proportional to 764,912.40, 1,055,560.68 and 416,043.84 is: 574,130.47
Step by Step Solution
- Step 1: Write the proportion equation
764,912.40 : 1,055,560.68 = 416,043.84 : x - Step 2: Convert to fraction form
764,912.40/1,055,560.68 = 416,043.84/x - Step 3: Cross multiply
764,912.40x = 1,055,560.68 × 416,043.84 - Step 4: Simplify right side
764,912.40x = 439,159,518,660.21 - Step 5: Solve for x
x = 439,159,518,660.21/764,912.40 - Step 6: Final answer
x = 574,130.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.