Finding the Fourth Proportional to 3,935,520, 5,430,958.72 and 2,216,807.68
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Solution
The fourth proportional to 3,935,520, 5,430,958.72 and 2,216,807.68 is: 3,059,161.43
Step by Step Solution
- Step 1: Write the proportion equation
3,935,520 : 5,430,958.72 = 2,216,807.68 : x - Step 2: Convert to fraction form
3,935,520/5,430,958.72 = 2,216,807.68/x - Step 3: Cross multiply
3,935,520x = 5,430,958.72 × 2,216,807.68 - Step 4: Simplify right side
3,935,520x = 12,039,391,000,258.97 - Step 5: Solve for x
x = 12,039,391,000,258.97/3,935,520 - Step 6: Final answer
x = 3,059,161.43
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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.