Finding the Fourth Proportional to 890,998.60, 1,336,497.90 and 491,433.70
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Solution
The fourth proportional to 890,998.60, 1,336,497.90 and 491,433.70 is: 737,150.55
Step by Step Solution
- Step 1: Write the proportion equation
890,998.60 : 1,336,497.90 = 491,433.70 : x - Step 2: Convert to fraction form
890,998.60/1,336,497.90 = 491,433.70/x - Step 3: Cross multiply
890,998.60x = 1,336,497.90 × 491,433.70 - Step 4: Simplify right side
890,998.60x = 656,800,108,039.23 - Step 5: Solve for x
x = 656,800,108,039.23/890,998.60 - Step 6: Final answer
x = 737,150.55
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1.5x scale
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.