Finding the Fourth Proportional to 3,106,589.13, 4,659,678.68 and 1,488,515.31
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Solution
The fourth proportional to 3,106,589.13, 4,659,678.68 and 1,488,515.31 is: 2,232,674.73
Step by Step Solution
- Step 1: Write the proportion equation
3,106,589.13 : 4,659,678.68 = 1,488,515.31 : x - Step 2: Convert to fraction form
3,106,589.13/4,659,678.68 = 1,488,515.31/x - Step 3: Cross multiply
3,106,589.13x = 4,659,678.68 × 1,488,515.31 - Step 4: Simplify right side
3,106,589.13x = 6,936,003,047,418.02 - Step 5: Solve for x
x = 6,936,003,047,418.02/3,106,589.13 - Step 6: Final answer
x = 2,232,674.73
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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.