Finding the Fourth Proportional to 1,201,720.44, 1,658,556.36 and 685,471.80
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Solution
The fourth proportional to 1,201,720.44, 1,658,556.36 and 685,471.80 is: 946,054.99
Step by Step Solution
- Step 1: Write the proportion equation
1,201,720.44 : 1,658,556.36 = 685,471.80 : x - Step 2: Convert to fraction form
1,201,720.44/1,658,556.36 = 685,471.80/x - Step 3: Cross multiply
1,201,720.44x = 1,658,556.36 × 685,471.80 - Step 4: Simplify right side
1,201,720.44x = 1,136,893,613,490.65 - Step 5: Solve for x
x = 1,136,893,613,490.65/1,201,720.44 - Step 6: Final answer
x = 946,054.99
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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.