Finding the Fourth Proportional to 998,827.20, 1,498,240.80 and 437,861.70
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Solution
The fourth proportional to 998,827.20, 1,498,240.80 and 437,861.70 is: 656,792.55
Step by Step Solution
- Step 1: Write the proportion equation
998,827.20 : 1,498,240.80 = 437,861.70 : x - Step 2: Convert to fraction form
998,827.20/1,498,240.80 = 437,861.70/x - Step 3: Cross multiply
998,827.20x = 1,498,240.80 × 437,861.70 - Step 4: Simplify right side
998,827.20x = 656,022,263,697.36 - Step 5: Solve for x
x = 656,022,263,697.36/998,827.20 - Step 6: Final answer
x = 656,792.55
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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.