Finding the Fourth Proportional to 449,183.79, 619,135.11 and 318,405.24
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Solution
The fourth proportional to 449,183.79, 619,135.11 and 318,405.24 is: 438,875.73
Step by Step Solution
- Step 1: Write the proportion equation
449,183.79 : 619,135.11 = 318,405.24 : x - Step 2: Convert to fraction form
449,183.79/619,135.11 = 318,405.24/x - Step 3: Cross multiply
449,183.79x = 619,135.11 × 318,405.24 - Step 4: Simplify right side
449,183.79x = 197,135,863,291.98 - Step 5: Solve for x
x = 197,135,863,291.98/449,183.79 - Step 6: Final answer
x = 438,875.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.