Finding the Fourth Proportional to 3,828,211.20, 5,283,303.74 and 2,859,659.98
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Solution
The fourth proportional to 3,828,211.20, 5,283,303.74 and 2,859,659.98 is: 3,946,608.86
Step by Step Solution
- Step 1: Write the proportion equation
3,828,211.20 : 5,283,303.74 = 2,859,659.98 : x - Step 2: Convert to fraction form
3,828,211.20/5,283,303.74 = 2,859,659.98/x - Step 3: Cross multiply
3,828,211.20x = 5,283,303.74 × 2,859,659.98 - Step 4: Simplify right side
3,828,211.20x = 15,108,452,250,679.49 - Step 5: Solve for x
x = 15,108,452,250,679.49/3,828,211.20 - Step 6: Final answer
x = 3,946,608.86
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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.