Finding the Fourth Proportional to 531,369.64, 733,289.34 and 289,652.68
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Solution
The fourth proportional to 531,369.64, 733,289.34 and 289,652.68 is: 399,720.28
Step by Step Solution
- Step 1: Write the proportion equation
531,369.64 : 733,289.34 = 289,652.68 : x - Step 2: Convert to fraction form
531,369.64/733,289.34 = 289,652.68/x - Step 3: Cross multiply
531,369.64x = 733,289.34 × 289,652.68 - Step 4: Simplify right side
531,369.64x = 212,399,222,546.43 - Step 5: Solve for x
x = 212,399,222,546.43/531,369.64 - Step 6: Final answer
x = 399,720.28
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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.