Finding the Fourth Proportional to 862,207.10, 1,189,846.13 and 499,841.02
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Solution
The fourth proportional to 862,207.10, 1,189,846.13 and 499,841.02 is: 689,780.80
Step by Step Solution
- Step 1: Write the proportion equation
862,207.10 : 1,189,846.13 = 499,841.02 : x - Step 2: Convert to fraction form
862,207.10/1,189,846.13 = 499,841.02/x - Step 3: Cross multiply
862,207.10x = 1,189,846.13 × 499,841.02 - Step 4: Simplify right side
862,207.10x = 594,733,900,763.05 - Step 5: Solve for x
x = 594,733,900,763.05/862,207.10 - Step 6: Final answer
x = 689,780.80
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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.