Finding the Fourth Proportional to 804,879.20, 1,207,318.80 and 486,014.60
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Solution
The fourth proportional to 804,879.20, 1,207,318.80 and 486,014.60 is: 729,021.90
Step by Step Solution
- Step 1: Write the proportion equation
804,879.20 : 1,207,318.80 = 486,014.60 : x - Step 2: Convert to fraction form
804,879.20/1,207,318.80 = 486,014.60/x - Step 3: Cross multiply
804,879.20x = 1,207,318.80 × 486,014.60 - Step 4: Simplify right side
804,879.20x = 586,774,563,654.48 - Step 5: Solve for x
x = 586,774,563,654.48/804,879.20 - Step 6: Final answer
x = 729,021.90
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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.