Finding the Fourth Proportional to 416,622.69, 574,986.09 and 235,346.31
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Solution
The fourth proportional to 416,622.69, 574,986.09 and 235,346.31 is: 324,804.33
Step by Step Solution
- Step 1: Write the proportion equation
416,622.69 : 574,986.09 = 235,346.31 : x - Step 2: Convert to fraction form
416,622.69/574,986.09 = 235,346.31/x - Step 3: Cross multiply
416,622.69x = 574,986.09 × 235,346.31 - Step 4: Simplify right side
416,622.69x = 135,320,855,465.38 - Step 5: Solve for x
x = 135,320,855,465.38/416,622.69 - Step 6: Final answer
x = 324,804.33
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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.