Finding the Fourth Proportional to 531,495.55, 734,163.99 and 393,953.31
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Solution
The fourth proportional to 531,495.55, 734,163.99 and 393,953.31 is: 544,174.51
Step by Step Solution
- Step 1: Write the proportion equation
531,495.55 : 734,163.99 = 393,953.31 : x - Step 2: Convert to fraction form
531,495.55/734,163.99 = 393,953.31/x - Step 3: Cross multiply
531,495.55x = 734,163.99 × 393,953.31 - Step 4: Simplify right side
531,495.55x = 289,226,330,272.49 - Step 5: Solve for x
x = 289,226,330,272.49/531,495.55 - Step 6: Final answer
x = 544,174.51
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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.