Finding the Fourth Proportional to 2,258,512.76, 3,116,752.90 and 1,239,983.08
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Solution
The fourth proportional to 2,258,512.76, 3,116,752.90 and 1,239,983.08 is: 1,711,179.56
Step by Step Solution
- Step 1: Write the proportion equation
2,258,512.76 : 3,116,752.90 = 1,239,983.08 : x - Step 2: Convert to fraction form
2,258,512.76/3,116,752.90 = 1,239,983.08/x - Step 3: Cross multiply
2,258,512.76x = 3,116,752.90 × 1,239,983.08 - Step 4: Simplify right side
2,258,512.76x = 3,864,720,860,540.93 - Step 5: Solve for x
x = 3,864,720,860,540.93/2,258,512.76 - Step 6: Final answer
x = 1,711,179.56
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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.