Finding the Fourth Proportional to 689,163.57, 1,033,744.74 and 215,885.85
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Solution
The fourth proportional to 689,163.57, 1,033,744.74 and 215,885.85 is: 323,828.58
Step by Step Solution
- Step 1: Write the proportion equation
689,163.57 : 1,033,744.74 = 215,885.85 : x - Step 2: Convert to fraction form
689,163.57/1,033,744.74 = 215,885.85/x - Step 3: Cross multiply
689,163.57x = 1,033,744.74 × 215,885.85 - Step 4: Simplify right side
689,163.57x = 223,170,861,877.93 - Step 5: Solve for x
x = 223,170,861,877.93/689,163.57 - Step 6: Final answer
x = 323,828.58
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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.