Finding the Fourth Proportional to 531,214.57, 733,054.81 and 289,491.99
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Solution
The fourth proportional to 531,214.57, 733,054.81 and 289,491.99 is: 399,487.34
Step by Step Solution
- Step 1: Write the proportion equation
531,214.57 : 733,054.81 = 289,491.99 : x - Step 2: Convert to fraction form
531,214.57/733,054.81 = 289,491.99/x - Step 3: Cross multiply
531,214.57x = 733,054.81 × 289,491.99 - Step 4: Simplify right side
531,214.57x = 212,213,496,919.52 - Step 5: Solve for x
x = 212,213,496,919.52/531,214.57 - Step 6: Final answer
x = 399,487.34
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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.