Finding the Fourth Proportional to 2,709,231.40, 4,068,512.70 and 1,916,079.40
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Solution
The fourth proportional to 2,709,231.40, 4,068,512.70 and 1,916,079.40 is: 2,877,418.80
Step by Step Solution
- Step 1: Write the proportion equation
2,709,231.40 : 4,068,512.70 = 1,916,079.40 : x - Step 2: Convert to fraction form
2,709,231.40/4,068,512.70 = 1,916,079.40/x - Step 3: Cross multiply
2,709,231.40x = 4,068,512.70 × 1,916,079.40 - Step 4: Simplify right side
2,709,231.40x = 7,795,593,373,108.38 - Step 5: Solve for x
x = 7,795,593,373,108.38/2,709,231.40 - Step 6: Final answer
x = 2,877,418.80
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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.