Finding the Fourth Proportional to 2,120,517.56, 2,926,321.18 and 1,153,647.64
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Solution
The fourth proportional to 2,120,517.56, 2,926,321.18 and 1,153,647.64 is: 1,592,037.52
Step by Step Solution
- Step 1: Write the proportion equation
2,120,517.56 : 2,926,321.18 = 1,153,647.64 : x - Step 2: Convert to fraction form
2,120,517.56/2,926,321.18 = 1,153,647.64/x - Step 3: Cross multiply
2,120,517.56x = 2,926,321.18 × 1,153,647.64 - Step 4: Simplify right side
2,120,517.56x = 3,375,943,523,189.02 - Step 5: Solve for x
x = 3,375,943,523,189.02/2,120,517.56 - Step 6: Final answer
x = 1,592,037.52
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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.