Finding the Fourth Proportional to 831,877.17, 1,147,990.49 and 449,903.95
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Solution
The fourth proportional to 831,877.17, 1,147,990.49 and 449,903.95 is: 620,867.45
Step by Step Solution
- Step 1: Write the proportion equation
831,877.17 : 1,147,990.49 = 449,903.95 : x - Step 2: Convert to fraction form
831,877.17/1,147,990.49 = 449,903.95/x - Step 3: Cross multiply
831,877.17x = 1,147,990.49 × 449,903.95 - Step 4: Simplify right side
831,877.17x = 516,485,456,013.44 - Step 5: Solve for x
x = 516,485,456,013.44/831,877.17 - Step 6: Final answer
x = 620,867.45
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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.