Finding the Fourth Proportional to 639,840.87, 959,023.08 and 240,226.77
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Solution
The fourth proportional to 639,840.87, 959,023.08 and 240,226.77 is: 360,062.99
Step by Step Solution
- Step 1: Write the proportion equation
639,840.87 : 959,023.08 = 240,226.77 : x - Step 2: Convert to fraction form
639,840.87/959,023.08 = 240,226.77/x - Step 3: Cross multiply
639,840.87x = 959,023.08 × 240,226.77 - Step 4: Simplify right side
639,840.87x = 230,383,016,863.85 - Step 5: Solve for x
x = 230,383,016,863.85/639,840.87 - Step 6: Final answer
x = 360,062.99
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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.