Finding the Fourth Proportional to 2,256,956.64, 3,114,599.66 and 1,290,107.74
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Solution
The fourth proportional to 2,256,956.64, 3,114,599.66 and 1,290,107.74 is: 1,780,348.39
Step by Step Solution
- Step 1: Write the proportion equation
2,256,956.64 : 3,114,599.66 = 1,290,107.74 : x - Step 2: Convert to fraction form
2,256,956.64/3,114,599.66 = 1,290,107.74/x - Step 3: Cross multiply
2,256,956.64x = 3,114,599.66 × 1,290,107.74 - Step 4: Simplify right side
2,256,956.64x = 4,018,169,128,367.37 - Step 5: Solve for x
x = 4,018,169,128,367.37/2,256,956.64 - Step 6: Final answer
x = 1,780,348.39
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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.