Finding the Fourth Proportional to 663,149.80, 994,724.70 and 219,917.80
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Solution
The fourth proportional to 663,149.80, 994,724.70 and 219,917.80 is: 329,876.70
Step by Step Solution
- Step 1: Write the proportion equation
663,149.80 : 994,724.70 = 219,917.80 : x - Step 2: Convert to fraction form
663,149.80/994,724.70 = 219,917.80/x - Step 3: Cross multiply
663,149.80x = 994,724.70 × 219,917.80 - Step 4: Simplify right side
663,149.80x = 218,757,667,629.66 - Step 5: Solve for x
x = 218,757,667,629.66/663,149.80 - Step 6: Final answer
x = 329,876.70
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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.