Finding the Fourth Proportional to 857,153.76, 1,285,533.87 and 511,035.17
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Solution
The fourth proportional to 857,153.76, 1,285,533.87 and 511,035.17 is: 766,435.45
Step by Step Solution
- Step 1: Write the proportion equation
857,153.76 : 1,285,533.87 = 511,035.17 : x - Step 2: Convert to fraction form
857,153.76/1,285,533.87 = 511,035.17/x - Step 3: Cross multiply
857,153.76x = 1,285,533.87 × 511,035.17 - Step 4: Simplify right side
857,153.76x = 656,953,019,796.21 - Step 5: Solve for x
x = 656,953,019,796.21/857,153.76 - Step 6: Final answer
x = 766,435.45
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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.