Finding the Fourth Proportional to 741,751.20, 1,112,140.80 and 292,201.20
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Solution
The fourth proportional to 741,751.20, 1,112,140.80 and 292,201.20 is: 438,110.35
Step by Step Solution
- Step 1: Write the proportion equation
741,751.20 : 1,112,140.80 = 292,201.20 : x - Step 2: Convert to fraction form
741,751.20/1,112,140.80 = 292,201.20/x - Step 3: Cross multiply
741,751.20x = 1,112,140.80 × 292,201.20 - Step 4: Simplify right side
741,751.20x = 324,968,876,328.96 - Step 5: Solve for x
x = 324,968,876,328.96/741,751.20 - Step 6: Final answer
x = 438,110.35
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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.