Finding the Fourth Proportional to 625,423.38, 863,176.90 and 396,001.99
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Solution
The fourth proportional to 625,423.38, 863,176.90 and 396,001.99 is: 546,541.40
Step by Step Solution
- Step 1: Write the proportion equation
625,423.38 : 863,176.90 = 396,001.99 : x - Step 2: Convert to fraction form
625,423.38/863,176.90 = 396,001.99/x - Step 3: Cross multiply
625,423.38x = 863,176.90 × 396,001.99 - Step 4: Simplify right side
625,423.38x = 341,819,770,122.03 - Step 5: Solve for x
x = 341,819,770,122.03/625,423.38 - Step 6: Final answer
x = 546,541.40
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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.