Finding the Fourth Proportional to 486,824.74, 729,584.37 and 378,884.45
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Solution
The fourth proportional to 486,824.74, 729,584.37 and 378,884.45 is: 567,818.66
Step by Step Solution
- Step 1: Write the proportion equation
486,824.74 : 729,584.37 = 378,884.45 : x - Step 2: Convert to fraction form
486,824.74/729,584.37 = 378,884.45/x - Step 3: Cross multiply
486,824.74x = 729,584.37 × 378,884.45 - Step 4: Simplify right side
486,824.74x = 276,428,169,108.13 - Step 5: Solve for x
x = 276,428,169,108.13/486,824.74 - Step 6: Final answer
x = 567,818.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.