Finding the Fourth Proportional to 513,432.28, 769,396.56 and 289,229.68
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Solution
The fourth proportional to 513,432.28, 769,396.56 and 289,229.68 is: 433,420.98
Step by Step Solution
- Step 1: Write the proportion equation
513,432.28 : 769,396.56 = 289,229.68 : x - Step 2: Convert to fraction form
513,432.28/769,396.56 = 289,229.68/x - Step 3: Cross multiply
513,432.28x = 769,396.56 × 289,229.68 - Step 4: Simplify right side
513,432.28x = 222,532,320,841.90 - Step 5: Solve for x
x = 222,532,320,841.90/513,432.28 - Step 6: Final answer
x = 433,420.98
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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.