Finding the Fourth Proportional to 2,489,955.46, 3,428,902.73 and 2,163,119.24
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Solution
The fourth proportional to 2,489,955.46, 3,428,902.73 and 2,163,119.24 is: 2,978,818.54
Step by Step Solution
- Step 1: Write the proportion equation
2,489,955.46 : 3,428,902.73 = 2,163,119.24 : x - Step 2: Convert to fraction form
2,489,955.46/3,428,902.73 = 2,163,119.24/x - Step 3: Cross multiply
2,489,955.46x = 3,428,902.73 × 2,163,119.24 - Step 4: Simplify right side
2,489,955.46x = 7,417,125,481,331.58 - Step 5: Solve for x
x = 7,417,125,481,331.58/2,489,955.46 - Step 6: Final answer
x = 2,978,818.54
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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.