Finding the Fourth Proportional to 3,788,421.80, 5,682,681.90 and 1,264,077.05
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Solution
The fourth proportional to 3,788,421.80, 5,682,681.90 and 1,264,077.05 is: 1,896,131.99
Step by Step Solution
- Step 1: Write the proportion equation
3,788,421.80 : 5,682,681.90 = 1,264,077.05 : x - Step 2: Convert to fraction form
3,788,421.80/5,682,681.90 = 1,264,077.05/x - Step 3: Cross multiply
3,788,421.80x = 5,682,681.90 × 1,264,077.05 - Step 4: Simplify right side
3,788,421.80x = 7,183,347,743,826.99 - Step 5: Solve for x
x = 7,183,347,743,826.99/3,788,421.80 - Step 6: Final answer
x = 1,896,131.99
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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.