Finding the Fourth Proportional to 988,698.80, 1,482,961.80 and 323,850.80
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Solution
The fourth proportional to 988,698.80, 1,482,961.80 and 323,850.80 is: 485,747.90
Step by Step Solution
- Step 1: Write the proportion equation
988,698.80 : 1,482,961.80 = 323,850.80 : x - Step 2: Convert to fraction form
988,698.80/1,482,961.80 = 323,850.80/x - Step 3: Cross multiply
988,698.80x = 1,482,961.80 × 323,850.80 - Step 4: Simplify right side
988,698.80x = 480,258,365,299.44 - Step 5: Solve for x
x = 480,258,365,299.44/988,698.80 - Step 6: Final answer
x = 485,747.90
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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.