Finding the Fourth Proportional to 1,256,115.85, 1,883,460.24 and 857,239.84
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Solution
The fourth proportional to 1,256,115.85, 1,883,460.24 and 857,239.84 is: 1,285,372.81
Step by Step Solution
- Step 1: Write the proportion equation
1,256,115.85 : 1,883,460.24 = 857,239.84 : x - Step 2: Convert to fraction form
1,256,115.85/1,883,460.24 = 857,239.84/x - Step 3: Cross multiply
1,256,115.85x = 1,883,460.24 × 857,239.84 - Step 4: Simplify right side
1,256,115.85x = 1,614,577,154,783.96 - Step 5: Solve for x
x = 1,614,577,154,783.96/1,256,115.85 - Step 6: Final answer
x = 1,285,372.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.