Finding the Fourth Proportional to 490,251.60, 735,377.40 and 431,202.60
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Solution
The fourth proportional to 490,251.60, 735,377.40 and 431,202.60 is: 646,803.90
Step by Step Solution
- Step 1: Write the proportion equation
490,251.60 : 735,377.40 = 431,202.60 : x - Step 2: Convert to fraction form
490,251.60/735,377.40 = 431,202.60/x - Step 3: Cross multiply
490,251.60x = 735,377.40 × 431,202.60 - Step 4: Simplify right side
490,251.60x = 317,096,646,861.24 - Step 5: Solve for x
x = 317,096,646,861.24/490,251.60 - Step 6: Final answer
x = 646,803.90
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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.