Finding the Fourth Proportional to 860,747.45, 1,291,193.44 and 261,713.79
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Solution
The fourth proportional to 860,747.45, 1,291,193.44 and 261,713.79 is: 392,592.66
Step by Step Solution
- Step 1: Write the proportion equation
860,747.45 : 1,291,193.44 = 261,713.79 : x - Step 2: Convert to fraction form
860,747.45/1,291,193.44 = 261,713.79/x - Step 3: Cross multiply
860,747.45x = 1,291,193.44 × 261,713.79 - Step 4: Simplify right side
860,747.45x = 337,923,128,151.25 - Step 5: Solve for x
x = 337,923,128,151.25/860,747.45 - Step 6: Final answer
x = 392,592.66
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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.