Finding the Fourth Proportional to 2,690,863.99, 3,713,818.27 and 1,603,766.13
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Solution
The fourth proportional to 2,690,863.99, 3,713,818.27 and 1,603,766.13 is: 2,213,451.13
Step by Step Solution
- Step 1: Write the proportion equation
2,690,863.99 : 3,713,818.27 = 1,603,766.13 : x - Step 2: Convert to fraction form
2,690,863.99/3,713,818.27 = 1,603,766.13/x - Step 3: Cross multiply
2,690,863.99x = 3,713,818.27 × 1,603,766.13 - Step 4: Simplify right side
2,690,863.99x = 5,956,095,942,479.09 - Step 5: Solve for x
x = 5,956,095,942,479.09/2,690,863.99 - Step 6: Final answer
x = 2,213,451.13
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1.5x scale
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.