Finding the Fourth Proportional to 921,456.96, 1,271,175.84 and 539,247.12
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Solution
The fourth proportional to 921,456.96, 1,271,175.84 and 539,247.12 is: 743,906.60
Step by Step Solution
- Step 1: Write the proportion equation
921,456.96 : 1,271,175.84 = 539,247.12 : x - Step 2: Convert to fraction form
921,456.96/1,271,175.84 = 539,247.12/x - Step 3: Cross multiply
921,456.96x = 1,271,175.84 × 539,247.12 - Step 4: Simplify right side
921,456.96x = 685,477,910,733.58 - Step 5: Solve for x
x = 685,477,910,733.58/921,456.96 - Step 6: Final answer
x = 743,906.60
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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.