Finding the Fourth Proportional to 664,490.10, 996,880.95 and 215,231.70
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Solution
The fourth proportional to 664,490.10, 996,880.95 and 215,231.70 is: 322,894.78
Step by Step Solution
- Step 1: Write the proportion equation
664,490.10 : 996,880.95 = 215,231.70 : x - Step 2: Convert to fraction form
664,490.10/996,880.95 = 215,231.70/x - Step 3: Cross multiply
664,490.10x = 996,880.95 × 215,231.70 - Step 4: Simplify right side
664,490.10x = 214,560,381,566.12 - Step 5: Solve for x
x = 214,560,381,566.12/664,490.10 - Step 6: Final answer
x = 322,894.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.