Finding the Fourth Proportional to 515,694.64, 711,749.52 and 324,767.92
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Solution
The fourth proportional to 515,694.64, 711,749.52 and 324,767.92 is: 448,236.99
Step by Step Solution
- Step 1: Write the proportion equation
515,694.64 : 711,749.52 = 324,767.92 : x - Step 2: Convert to fraction form
515,694.64/711,749.52 = 324,767.92/x - Step 3: Cross multiply
515,694.64x = 711,749.52 × 324,767.92 - Step 4: Simplify right side
515,694.64x = 231,153,411,171.40 - Step 5: Solve for x
x = 231,153,411,171.40/515,694.64 - Step 6: Final answer
x = 448,236.99
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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.