Finding the Fourth Proportional to 498,996.75, 688,622.10 and 284,137.68
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Solution
The fourth proportional to 498,996.75, 688,622.10 and 284,137.68 is: 392,113.75
Step by Step Solution
- Step 1: Write the proportion equation
498,996.75 : 688,622.10 = 284,137.68 : x - Step 2: Convert to fraction form
498,996.75/688,622.10 = 284,137.68/x - Step 3: Cross multiply
498,996.75x = 688,622.10 × 284,137.68 - Step 4: Simplify right side
498,996.75x = 195,663,485,890.73 - Step 5: Solve for x
x = 195,663,485,890.73/498,996.75 - Step 6: Final answer
x = 392,113.75
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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.