Finding the Fourth Proportional to 876,395.92, 1,209,481.68 and 494,283.28
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Solution
The fourth proportional to 876,395.92, 1,209,481.68 and 494,283.28 is: 682,142.12
Step by Step Solution
- Step 1: Write the proportion equation
876,395.92 : 1,209,481.68 = 494,283.28 : x - Step 2: Convert to fraction form
876,395.92/1,209,481.68 = 494,283.28/x - Step 3: Cross multiply
876,395.92x = 1,209,481.68 × 494,283.28 - Step 4: Simplify right side
876,395.92x = 597,826,571,890.31 - Step 5: Solve for x
x = 597,826,571,890.31/876,395.92 - Step 6: Final answer
x = 682,142.12
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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.