Finding the Fourth Proportional to 831,881.84, 1,147,996.95 and 449,908.63
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Solution
The fourth proportional to 831,881.84, 1,147,996.95 and 449,908.63 is: 620,873.92
Step by Step Solution
- Step 1: Write the proportion equation
831,881.84 : 1,147,996.95 = 449,908.63 : x - Step 2: Convert to fraction form
831,881.84/1,147,996.95 = 449,908.63/x - Step 3: Cross multiply
831,881.84x = 1,147,996.95 × 449,908.63 - Step 4: Simplify right side
831,881.84x = 516,493,735,018.68 - Step 5: Solve for x
x = 516,493,735,018.68/831,881.84 - Step 6: Final answer
x = 620,873.92
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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.