Finding the Fourth Proportional to 831,762.73, 1,147,828.35 and 449,788.60
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Solution
The fourth proportional to 831,762.73, 1,147,828.35 and 449,788.60 is: 620,705.99
Step by Step Solution
- Step 1: Write the proportion equation
831,762.73 : 1,147,828.35 = 449,788.60 : x - Step 2: Convert to fraction form
831,762.73/1,147,828.35 = 449,788.60/x - Step 3: Cross multiply
831,762.73x = 1,147,828.35 × 449,788.60 - Step 4: Simplify right side
831,762.73x = 516,280,106,586.81 - Step 5: Solve for x
x = 516,280,106,586.81/831,762.73 - Step 6: Final answer
x = 620,705.99
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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.