Finding the Fourth Proportional to 831,961.12, 1,148,102.59 and 449,986.99
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Solution
The fourth proportional to 831,961.12, 1,148,102.59 and 449,986.99 is: 620,980.01
Step by Step Solution
- Step 1: Write the proportion equation
831,961.12 : 1,148,102.59 = 449,986.99 : x - Step 2: Convert to fraction form
831,961.12/1,148,102.59 = 449,986.99/x - Step 3: Cross multiply
831,961.12x = 1,148,102.59 × 449,986.99 - Step 4: Simplify right side
831,961.12x = 516,631,228,685.30 - Step 5: Solve for x
x = 516,631,228,685.30/831,961.12 - Step 6: Final answer
x = 620,980.01
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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.