Finding the Fourth Proportional to 3,127,481.64, 4,315,713.30 and 1,731,943.08
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Solution
The fourth proportional to 3,127,481.64, 4,315,713.30 and 1,731,943.08 is: 2,389,964.40
Step by Step Solution
- Step 1: Write the proportion equation
3,127,481.64 : 4,315,713.30 = 1,731,943.08 : x - Step 2: Convert to fraction form
3,127,481.64/4,315,713.30 = 1,731,943.08/x - Step 3: Cross multiply
3,127,481.64x = 4,315,713.30 × 1,731,943.08 - Step 4: Simplify right side
3,127,481.64x = 7,474,569,785,198.96 - Step 5: Solve for x
x = 7,474,569,785,198.96/3,127,481.64 - Step 6: Final answer
x = 2,389,964.40
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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.