Finding the Fourth Proportional to 2,540,403.36, 3,505,712.65 and 1,378,824.70
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Solution
The fourth proportional to 2,540,403.36, 3,505,712.65 and 1,378,824.70 is: 1,902,754.21
Step by Step Solution
- Step 1: Write the proportion equation
2,540,403.36 : 3,505,712.65 = 1,378,824.70 : x - Step 2: Convert to fraction form
2,540,403.36/3,505,712.65 = 1,378,824.70/x - Step 3: Cross multiply
2,540,403.36x = 3,505,712.65 × 1,378,824.70 - Step 4: Simplify right side
2,540,403.36x = 4,833,763,192,922.46 - Step 5: Solve for x
x = 4,833,763,192,922.46/2,540,403.36 - Step 6: Final answer
x = 1,902,754.21
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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.