Finding the Fourth Proportional to 2,261,311.92, 3,120,729.93 and 1,281,440.97
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Solution
The fourth proportional to 2,261,311.92, 3,120,729.93 and 1,281,440.97 is: 1,768,456.25
Step by Step Solution
- Step 1: Write the proportion equation
2,261,311.92 : 3,120,729.93 = 1,281,440.97 : x - Step 2: Convert to fraction form
2,261,311.92/3,120,729.93 = 1,281,440.97/x - Step 3: Cross multiply
2,261,311.92x = 3,120,729.93 × 1,281,440.97 - Step 4: Simplify right side
2,261,311.92x = 3,999,031,188,607.23 - Step 5: Solve for x
x = 3,999,031,188,607.23/2,261,311.92 - Step 6: Final answer
x = 1,768,456.25
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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.