Finding the Fourth Proportional to 1,327,885.12, 1,990,747.15 and 416,599.13
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Solution
The fourth proportional to 1,327,885.12, 1,990,747.15 and 416,599.13 is: 624,559.70
Step by Step Solution
- Step 1: Write the proportion equation
1,327,885.12 : 1,990,747.15 = 416,599.13 : x - Step 2: Convert to fraction form
1,327,885.12/1,990,747.15 = 416,599.13/x - Step 3: Cross multiply
1,327,885.12x = 1,990,747.15 × 416,599.13 - Step 4: Simplify right side
1,327,885.12x = 829,343,530,739.98 - Step 5: Solve for x
x = 829,343,530,739.98/1,327,885.12 - Step 6: Final answer
x = 624,559.70
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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.