Finding the Fourth Proportional to 412,201.20, 618,496.20 and 307,225.20
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Solution
The fourth proportional to 412,201.20, 618,496.20 and 307,225.20 is: 460,982.69
Step by Step Solution
- Step 1: Write the proportion equation
412,201.20 : 618,496.20 = 307,225.20 : x - Step 2: Convert to fraction form
412,201.20/618,496.20 = 307,225.20/x - Step 3: Cross multiply
412,201.20x = 618,496.20 × 307,225.20 - Step 4: Simplify right side
412,201.20x = 190,017,618,744.24 - Step 5: Solve for x
x = 190,017,618,744.24/412,201.20 - Step 6: Final answer
x = 460,982.69
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1.5x scale
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.