Finding the Fourth Proportional to 2,149,379.53, 2,966,143.61 and 1,182,489.08
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Solution
The fourth proportional to 2,149,379.53, 2,966,143.61 and 1,182,489.08 is: 1,631,834.85
Step by Step Solution
- Step 1: Write the proportion equation
2,149,379.53 : 2,966,143.61 = 1,182,489.08 : x - Step 2: Convert to fraction form
2,149,379.53/2,966,143.61 = 1,182,489.08/x - Step 3: Cross multiply
2,149,379.53x = 2,966,143.61 × 1,182,489.08 - Step 4: Simplify right side
2,149,379.53x = 3,507,432,416,662.28 - Step 5: Solve for x
x = 3,507,432,416,662.28/2,149,379.53 - Step 6: Final answer
x = 1,631,834.85
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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.