Finding the Fourth Proportional to 2,107,589.97, 2,908,544.55 and 1,291,635.99
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Solution
The fourth proportional to 2,107,589.97, 2,908,544.55 and 1,291,635.99 is: 1,782,500.81
Step by Step Solution
- Step 1: Write the proportion equation
2,107,589.97 : 2,908,544.55 = 1,291,635.99 : x - Step 2: Convert to fraction form
2,107,589.97/2,908,544.55 = 1,291,635.99/x - Step 3: Cross multiply
2,107,589.97x = 2,908,544.55 × 1,291,635.99 - Step 4: Simplify right side
2,107,589.97x = 3,756,780,819,298.35 - Step 5: Solve for x
x = 3,756,780,819,298.35/2,107,589.97 - Step 6: Final answer
x = 1,782,500.81
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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.