Finding the Fourth Proportional to 2,551,439.32, 3,520,819.12 and 1,405,519.68
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Solution
The fourth proportional to 2,551,439.32, 3,520,819.12 and 1,405,519.68 is: 1,939,525.08
Step by Step Solution
- Step 1: Write the proportion equation
2,551,439.32 : 3,520,819.12 = 1,405,519.68 : x - Step 2: Convert to fraction form
2,551,439.32/3,520,819.12 = 1,405,519.68/x - Step 3: Cross multiply
2,551,439.32x = 3,520,819.12 × 1,405,519.68 - Step 4: Simplify right side
2,551,439.32x = 4,948,580,562,880.28 - Step 5: Solve for x
x = 4,948,580,562,880.28/2,551,439.32 - Step 6: Final answer
x = 1,939,525.08
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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.