Finding the Fourth Proportional to 857,163.65, 1,286,454.89 and 430,821.68
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Solution
The fourth proportional to 857,163.65, 1,286,454.89 and 430,821.68 is: 646,589.08
Step by Step Solution
- Step 1: Write the proportion equation
857,163.65 : 1,286,454.89 = 430,821.68 : x - Step 2: Convert to fraction form
857,163.65/1,286,454.89 = 430,821.68/x - Step 3: Cross multiply
857,163.65x = 1,286,454.89 × 430,821.68 - Step 4: Simplify right side
857,163.65x = 554,232,648,367.63 - Step 5: Solve for x
x = 554,232,648,367.63/857,163.65 - Step 6: Final answer
x = 646,589.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.