Finding the Fourth Proportional to 528,213.20, 728,944.14 and 324,162.02
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Solution
The fourth proportional to 528,213.20, 728,944.14 and 324,162.02 is: 447,349.68
Step by Step Solution
- Step 1: Write the proportion equation
528,213.20 : 728,944.14 = 324,162.02 : x - Step 2: Convert to fraction form
528,213.20/728,944.14 = 324,162.02/x - Step 3: Cross multiply
528,213.20x = 728,944.14 × 324,162.02 - Step 4: Simplify right side
528,213.20x = 236,296,004,889.56 - Step 5: Solve for x
x = 236,296,004,889.56/528,213.20 - Step 6: Final answer
x = 447,349.68
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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.