Finding the Fourth Proportional to 3,164,489.91, 4,366,736.55 and 1,787,952.96
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Solution
The fourth proportional to 3,164,489.91, 4,366,736.55 and 1,787,952.96 is: 2,467,228.45
Step by Step Solution
- Step 1: Write the proportion equation
3,164,489.91 : 4,366,736.55 = 1,787,952.96 : x - Step 2: Convert to fraction form
3,164,489.91/4,366,736.55 = 1,787,952.96/x - Step 3: Cross multiply
3,164,489.91x = 4,366,736.55 × 1,787,952.96 - Step 4: Simplify right side
3,164,489.91x = 7,807,519,540,112.69 - Step 5: Solve for x
x = 7,807,519,540,112.69/3,164,489.91 - Step 6: Final answer
x = 2,467,228.45
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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.