Finding the Fourth Proportional to 687,477.36, 948,704.48 and 381,535.96
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Solution
The fourth proportional to 687,477.36, 948,704.48 and 381,535.96 is: 526,511.70
Step by Step Solution
- Step 1: Write the proportion equation
687,477.36 : 948,704.48 = 381,535.96 : x - Step 2: Convert to fraction form
687,477.36/948,704.48 = 381,535.96/x - Step 3: Cross multiply
687,477.36x = 948,704.48 × 381,535.96 - Step 4: Simplify right side
687,477.36x = 361,964,874,533.10 - Step 5: Solve for x
x = 361,964,874,533.10/687,477.36 - Step 6: Final answer
x = 526,511.70
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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.