Finding the Fourth Proportional to 2,156,515.16, 3,234,219.17 and 639,839.30
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Solution
The fourth proportional to 2,156,515.16, 3,234,219.17 and 639,839.30 is: 959,594.70
Step by Step Solution
- Step 1: Write the proportion equation
2,156,515.16 : 3,234,219.17 = 639,839.30 : x - Step 2: Convert to fraction form
2,156,515.16/3,234,219.17 = 639,839.30/x - Step 3: Cross multiply
2,156,515.16x = 3,234,219.17 × 639,839.30 - Step 4: Simplify right side
2,156,515.16x = 2,069,380,510,409.09 - Step 5: Solve for x
x = 2,069,380,510,409.09/2,156,515.16 - Step 6: Final answer
x = 959,594.70
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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.