Finding the Fourth Proportional to 687,599.10, 948,839.24 and 381,651.44
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Solution
The fourth proportional to 687,599.10, 948,839.24 and 381,651.44 is: 526,652.60
Step by Step Solution
- Step 1: Write the proportion equation
687,599.10 : 948,839.24 = 381,651.44 : x - Step 2: Convert to fraction form
687,599.10/948,839.24 = 381,651.44/x - Step 3: Cross multiply
687,599.10x = 948,839.24 × 381,651.44 - Step 4: Simplify right side
687,599.10x = 362,125,855,622.05 - Step 5: Solve for x
x = 362,125,855,622.05/687,599.10 - Step 6: Final answer
x = 526,652.60
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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.