Finding the Fourth Proportional to 831,729.94, 1,147,787.34 and 449,756.74
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Solution
The fourth proportional to 831,729.94, 1,147,787.34 and 449,756.74 is: 620,664.31
Step by Step Solution
- Step 1: Write the proportion equation
831,729.94 : 1,147,787.34 = 449,756.74 : x - Step 2: Convert to fraction form
831,729.94/1,147,787.34 = 449,756.74/x - Step 3: Cross multiply
831,729.94x = 1,147,787.34 × 449,756.74 - Step 4: Simplify right side
831,729.94x = 516,225,092,251.67 - Step 5: Solve for x
x = 516,225,092,251.67/831,729.94 - Step 6: Final answer
x = 620,664.31
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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.