Finding the Fourth Proportional to 857,380.36, 1,183,238.09 and 475,407.14
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Solution
The fourth proportional to 857,380.36, 1,183,238.09 and 475,407.14 is: 656,091.35
Step by Step Solution
- Step 1: Write the proportion equation
857,380.36 : 1,183,238.09 = 475,407.14 : x - Step 2: Convert to fraction form
857,380.36/1,183,238.09 = 475,407.14/x - Step 3: Cross multiply
857,380.36x = 1,183,238.09 × 475,407.14 - Step 4: Simplify right side
857,380.36x = 562,519,836,887.02 - Step 5: Solve for x
x = 562,519,836,887.02/857,380.36 - Step 6: Final answer
x = 656,091.35
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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.