Finding the Fourth Proportional to 913,682.68, 1,370,804.48 and 408,668.56
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Solution
The fourth proportional to 913,682.68, 1,370,804.48 and 408,668.56 is: 613,128.28
Step by Step Solution
- Step 1: Write the proportion equation
913,682.68 : 1,370,804.48 = 408,668.56 : x - Step 2: Convert to fraction form
913,682.68/1,370,804.48 = 408,668.56/x - Step 3: Cross multiply
913,682.68x = 1,370,804.48 × 408,668.56 - Step 4: Simplify right side
913,682.68x = 560,204,692,883.15 - Step 5: Solve for x
x = 560,204,692,883.15/913,682.68 - Step 6: Final answer
x = 613,128.28
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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.