Finding the Fourth Proportional to 4,985,475.12, 7,479,474.30 and 1,391,241.60
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Solution
The fourth proportional to 4,985,475.12, 7,479,474.30 and 1,391,241.60 is: 2,087,214.47
Step by Step Solution
- Step 1: Write the proportion equation
4,985,475.12 : 7,479,474.30 = 1,391,241.60 : x - Step 2: Convert to fraction form
4,985,475.12/7,479,474.30 = 1,391,241.60/x - Step 3: Cross multiply
4,985,475.12x = 7,479,474.30 × 1,391,241.60 - Step 4: Simplify right side
4,985,475.12x = 10,405,755,792,290.88 - Step 5: Solve for x
x = 10,405,755,792,290.88/4,985,475.12 - Step 6: Final answer
x = 2,087,214.47
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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.