Finding the Fourth Proportional to 3,928,613.40, 5,421,432.06 and 2,209,735.08
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Solution
The fourth proportional to 3,928,613.40, 5,421,432.06 and 2,209,735.08 is: 3,049,403.79
Step by Step Solution
- Step 1: Write the proportion equation
3,928,613.40 : 5,421,432.06 = 2,209,735.08 : x - Step 2: Convert to fraction form
3,928,613.40/5,421,432.06 = 2,209,735.08/x - Step 3: Cross multiply
3,928,613.40x = 5,421,432.06 × 2,209,735.08 - Step 4: Simplify right side
3,928,613.40x = 11,979,928,606,818.66 - Step 5: Solve for x
x = 11,979,928,606,818.66/3,928,613.40 - Step 6: Final answer
x = 3,049,403.79
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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.