Finding the Fourth Proportional to 831,828.21, 1,147,926.38 and 449,855.00
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Solution
The fourth proportional to 831,828.21, 1,147,926.38 and 449,855.00 is: 620,801.76
Step by Step Solution
- Step 1: Write the proportion equation
831,828.21 : 1,147,926.38 = 449,855.00 : x - Step 2: Convert to fraction form
831,828.21/1,147,926.38 = 449,855.00/x - Step 3: Cross multiply
831,828.21x = 1,147,926.38 × 449,855.00 - Step 4: Simplify right side
831,828.21x = 516,400,417,059.91 - Step 5: Solve for x
x = 516,400,417,059.91/831,828.21 - Step 6: Final answer
x = 620,801.76
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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.