Finding the Fourth Proportional to 1,380,464.14, 2,068,951.46 and 621,497.38
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Solution
The fourth proportional to 1,380,464.14, 2,068,951.46 and 621,497.38 is: 931,460.57
Step by Step Solution
- Step 1: Write the proportion equation
1,380,464.14 : 2,068,951.46 = 621,497.38 : x - Step 2: Convert to fraction form
1,380,464.14/2,068,951.46 = 621,497.38/x - Step 3: Cross multiply
1,380,464.14x = 2,068,951.46 × 621,497.38 - Step 4: Simplify right side
1,380,464.14x = 1,285,847,911,737.17 - Step 5: Solve for x
x = 1,285,847,911,737.17/1,380,464.14 - Step 6: Final answer
x = 931,460.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.