Finding the Fourth Proportional to 3,947,704.80, 5,921,751.60 and 2,058,136.80
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Solution
The fourth proportional to 3,947,704.80, 5,921,751.60 and 2,058,136.80 is: 3,087,306.55
Step by Step Solution
- Step 1: Write the proportion equation
3,947,704.80 : 5,921,751.60 = 2,058,136.80 : x - Step 2: Convert to fraction form
3,947,704.80/5,921,751.60 = 2,058,136.80/x - Step 3: Cross multiply
3,947,704.80x = 5,921,751.60 × 2,058,136.80 - Step 4: Simplify right side
3,947,704.80x = 12,187,774,888,418.88 - Step 5: Solve for x
x = 12,187,774,888,418.88/3,947,704.80 - Step 6: Final answer
x = 3,087,306.55
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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.