Finding the Fourth Proportional to 782,480.92, 1,174,157.46 and 422,644.49
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Solution
The fourth proportional to 782,480.92, 1,174,157.46 and 422,644.49 is: 634,202.28
Step by Step Solution
- Step 1: Write the proportion equation
782,480.92 : 1,174,157.46 = 422,644.49 : x - Step 2: Convert to fraction form
782,480.92/1,174,157.46 = 422,644.49/x - Step 3: Cross multiply
782,480.92x = 1,174,157.46 × 422,644.49 - Step 4: Simplify right side
782,480.92x = 496,251,183,796.79 - Step 5: Solve for x
x = 496,251,183,796.79/782,480.92 - Step 6: Final answer
x = 634,202.28
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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.