Finding the Fourth Proportional to 3,409,184.32, 5,112,447.36 and 1,278,106.72
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Solution
The fourth proportional to 3,409,184.32, 5,112,447.36 and 1,278,106.72 is: 1,916,661.79
Step by Step Solution
- Step 1: Write the proportion equation
3,409,184.32 : 5,112,447.36 = 1,278,106.72 : x - Step 2: Convert to fraction form
3,409,184.32/5,112,447.36 = 1,278,106.72/x - Step 3: Cross multiply
3,409,184.32x = 5,112,447.36 × 1,278,106.72 - Step 4: Simplify right side
3,409,184.32x = 6,534,253,326,462.26 - Step 5: Solve for x
x = 6,534,253,326,462.26/3,409,184.32 - Step 6: Final answer
x = 1,916,661.79
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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.