Finding the Fourth Proportional to 2,257,929.28, 3,115,540.44 and 1,277,863.71
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Solution
The fourth proportional to 2,257,929.28, 3,115,540.44 and 1,277,863.71 is: 1,763,224.42
Step by Step Solution
- Step 1: Write the proportion equation
2,257,929.28 : 3,115,540.44 = 1,277,863.71 : x - Step 2: Convert to fraction form
2,257,929.28/3,115,540.44 = 1,277,863.71/x - Step 3: Cross multiply
2,257,929.28x = 3,115,540.44 × 1,277,863.71 - Step 4: Simplify right side
2,257,929.28x = 3,981,236,058,422.15 - Step 5: Solve for x
x = 3,981,236,058,422.15/2,257,929.28 - Step 6: Final answer
x = 1,763,224.42
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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.