Finding the Fourth Proportional to 531,217.21, 733,058.36 and 289,494.60
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Solution
The fourth proportional to 531,217.21, 733,058.36 and 289,494.60 is: 399,490.88
Step by Step Solution
- Step 1: Write the proportion equation
531,217.21 : 733,058.36 = 289,494.60 : x - Step 2: Convert to fraction form
531,217.21/733,058.36 = 289,494.60/x - Step 3: Cross multiply
531,217.21x = 733,058.36 × 289,494.60 - Step 4: Simplify right side
531,217.21x = 212,216,431,592.09 - Step 5: Solve for x
x = 212,216,431,592.09/531,217.21 - Step 6: Final answer
x = 399,490.88
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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.