Finding the Fourth Proportional to 4,873,461.12, 7,310,433.60 and 1,279,238.40
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Solution
The fourth proportional to 4,873,461.12, 7,310,433.60 and 1,279,238.40 is: 1,918,921.10
Step by Step Solution
- Step 1: Write the proportion equation
4,873,461.12 : 7,310,433.60 = 1,279,238.40 : x - Step 2: Convert to fraction form
4,873,461.12/7,310,433.60 = 1,279,238.40/x - Step 3: Cross multiply
4,873,461.12x = 7,310,433.60 × 1,279,238.40 - Step 4: Simplify right side
4,873,461.12x = 9,351,787,381,770.24 - Step 5: Solve for x
x = 9,351,787,381,770.24/4,873,461.12 - Step 6: Final answer
x = 1,918,921.10
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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.