Finding the Fourth Proportional to 527,138.28, 727,452.24 and 285,423.84
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Solution
The fourth proportional to 527,138.28, 727,452.24 and 285,423.84 is: 393,885.66
Step by Step Solution
- Step 1: Write the proportion equation
527,138.28 : 727,452.24 = 285,423.84 : x - Step 2: Convert to fraction form
527,138.28/727,452.24 = 285,423.84/x - Step 3: Cross multiply
527,138.28x = 727,452.24 × 285,423.84 - Step 4: Simplify right side
527,138.28x = 207,632,211,757.40 - Step 5: Solve for x
x = 207,632,211,757.40/527,138.28 - Step 6: Final answer
x = 393,885.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.