Finding the Fourth Proportional to 639,183.87, 959,142.13 and 260,034.62
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Solution
The fourth proportional to 639,183.87, 959,142.13 and 260,034.62 is: 390,200.95
Step by Step Solution
- Step 1: Write the proportion equation
639,183.87 : 959,142.13 = 260,034.62 : x - Step 2: Convert to fraction form
639,183.87/959,142.13 = 260,034.62/x - Step 3: Cross multiply
639,183.87x = 959,142.13 × 260,034.62 - Step 4: Simplify right side
639,183.87x = 249,410,153,854.74 - Step 5: Solve for x
x = 249,410,153,854.74/639,183.87 - Step 6: Final answer
x = 390,200.95
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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.