Finding the Fourth Proportional to 625,424.38, 863,178.28 and 396,002.99
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Solution
The fourth proportional to 625,424.38, 863,178.28 and 396,002.99 is: 546,542.78
Step by Step Solution
- Step 1: Write the proportion equation
625,424.38 : 863,178.28 = 396,002.99 : x - Step 2: Convert to fraction form
625,424.38/863,178.28 = 396,002.99/x - Step 3: Cross multiply
625,424.38x = 863,178.28 × 396,002.99 - Step 4: Simplify right side
625,424.38x = 341,821,179,783.06 - Step 5: Solve for x
x = 341,821,179,783.06/625,424.38 - Step 6: Final answer
x = 546,542.78
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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.