Finding the Fourth Proportional to 2,787,984.56, 3,847,485.02 and 1,564,380.61
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Solution
The fourth proportional to 2,787,984.56, 3,847,485.02 and 1,564,380.61 is: 2,158,882.45
Step by Step Solution
- Step 1: Write the proportion equation
2,787,984.56 : 3,847,485.02 = 1,564,380.61 : x - Step 2: Convert to fraction form
2,787,984.56/3,847,485.02 = 1,564,380.61/x - Step 3: Cross multiply
2,787,984.56x = 3,847,485.02 × 1,564,380.61 - Step 4: Simplify right side
2,787,984.56x = 6,018,930,945,112.85 - Step 5: Solve for x
x = 6,018,930,945,112.85/2,787,984.56 - Step 6: Final answer
x = 2,158,882.45
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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.