Finding the Fourth Proportional to 531,299.21, 733,193.45 and 289,581.98
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Solution
The fourth proportional to 531,299.21, 733,193.45 and 289,581.98 is: 399,623.42
Step by Step Solution
- Step 1: Write the proportion equation
531,299.21 : 733,193.45 = 289,581.98 : x - Step 2: Convert to fraction form
531,299.21/733,193.45 = 289,581.98/x - Step 3: Cross multiply
531,299.21x = 733,193.45 × 289,581.98 - Step 4: Simplify right side
531,299.21x = 212,319,605,860.15 - Step 5: Solve for x
x = 212,319,605,860.15/531,299.21 - Step 6: Final answer
x = 399,623.42
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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.