Finding the Fourth Proportional to 480,216.24, 661,932.68 and 378,079.92
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Solution
The fourth proportional to 480,216.24, 661,932.68 and 378,079.92 is: 521,147.42
Step by Step Solution
- Step 1: Write the proportion equation
480,216.24 : 661,932.68 = 378,079.92 : x - Step 2: Convert to fraction form
480,216.24/661,932.68 = 378,079.92/x - Step 3: Cross multiply
480,216.24x = 661,932.68 × 378,079.92 - Step 4: Simplify right side
480,216.24x = 250,263,454,699.79 - Step 5: Solve for x
x = 250,263,454,699.79/480,216.24 - Step 6: Final answer
x = 521,147.42
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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.