Finding the Fourth Proportional to 862,303.11, 1,189,990.67 and 494,840.13
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Solution
The fourth proportional to 862,303.11, 1,189,990.67 and 494,840.13 is: 682,886.48
Step by Step Solution
- Step 1: Write the proportion equation
862,303.11 : 1,189,990.67 = 494,840.13 : x - Step 2: Convert to fraction form
862,303.11/1,189,990.67 = 494,840.13/x - Step 3: Cross multiply
862,303.11x = 1,189,990.67 × 494,840.13 - Step 4: Simplify right side
862,303.11x = 588,855,135,367.39 - Step 5: Solve for x
x = 588,855,135,367.39/862,303.11 - Step 6: Final answer
x = 682,886.48
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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.