Finding the Fourth Proportional to 748,335.21, 1,122,945.68 and 275,352.72
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Solution
The fourth proportional to 748,335.21, 1,122,945.68 and 275,352.72 is: 413,192.03
Step by Step Solution
- Step 1: Write the proportion equation
748,335.21 : 1,122,945.68 = 275,352.72 : x - Step 2: Convert to fraction form
748,335.21/1,122,945.68 = 275,352.72/x - Step 3: Cross multiply
748,335.21x = 1,122,945.68 × 275,352.72 - Step 4: Simplify right side
748,335.21x = 309,206,147,400.25 - Step 5: Solve for x
x = 309,206,147,400.25/748,335.21 - Step 6: Final answer
x = 413,192.03
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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.