Finding the Fourth Proportional to 677,633.24, 935,163.20 and 405,648.48
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Solution
The fourth proportional to 677,633.24, 935,163.20 and 405,648.48 is: 559,812.46
Step by Step Solution
- Step 1: Write the proportion equation
677,633.24 : 935,163.20 = 405,648.48 : x - Step 2: Convert to fraction form
677,633.24/935,163.20 = 405,648.48/x - Step 3: Cross multiply
677,633.24x = 935,163.20 × 405,648.48 - Step 4: Simplify right side
677,633.24x = 379,347,530,631.94 - Step 5: Solve for x
x = 379,347,530,631.94/677,633.24 - Step 6: Final answer
x = 559,812.46
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1.5x scale
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.