Finding the Fourth Proportional to 4,172,771.79, 6,259,157.78 and 2,278,479.87
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Solution
The fourth proportional to 4,172,771.79, 6,259,157.78 and 2,278,479.87 is: 3,417,719.85
Step by Step Solution
- Step 1: Write the proportion equation
4,172,771.79 : 6,259,157.78 = 2,278,479.87 : x - Step 2: Convert to fraction form
4,172,771.79/6,259,157.78 = 2,278,479.87/x - Step 3: Cross multiply
4,172,771.79x = 6,259,157.78 × 2,278,479.87 - Step 4: Simplify right side
4,172,771.79x = 14,261,364,993,491.49 - Step 5: Solve for x
x = 14,261,364,993,491.49/4,172,771.79 - Step 6: Final answer
x = 3,417,719.85
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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.