Finding the Fourth Proportional to 378,340.80, 567,511.20 and 317,515.20
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Solution
The fourth proportional to 378,340.80, 567,511.20 and 317,515.20 is: 476,272.80
Step by Step Solution
- Step 1: Write the proportion equation
378,340.80 : 567,511.20 = 317,515.20 : x - Step 2: Convert to fraction form
378,340.80/567,511.20 = 317,515.20/x - Step 3: Cross multiply
378,340.80x = 567,511.20 × 317,515.20 - Step 4: Simplify right side
378,340.80x = 180,193,432,170.24 - Step 5: Solve for x
x = 180,193,432,170.24/378,340.80 - Step 6: Final answer
x = 476,272.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.