Finding the Fourth Proportional to 3,927,857.68, 5,420,358.48 and 2,274,074.56
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Solution
The fourth proportional to 3,927,857.68, 5,420,358.48 and 2,274,074.56 is: 3,138,173.61
Step by Step Solution
- Step 1: Write the proportion equation
3,927,857.68 : 5,420,358.48 = 2,274,074.56 : x - Step 2: Convert to fraction form
3,927,857.68/5,420,358.48 = 2,274,074.56/x - Step 3: Cross multiply
3,927,857.68x = 5,420,358.48 × 2,274,074.56 - Step 4: Simplify right side
3,927,857.68x = 12,326,299,325,448.27 - Step 5: Solve for x
x = 12,326,299,325,448.27/3,927,857.68 - Step 6: Final answer
x = 3,138,173.61
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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.