Finding the Fourth Proportional to 2,156,512.91, 3,234,215.79 and 639,837.05
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Solution
The fourth proportional to 2,156,512.91, 3,234,215.79 and 639,837.05 is: 959,591.32
Step by Step Solution
- Step 1: Write the proportion equation
2,156,512.91 : 3,234,215.79 = 639,837.05 : x - Step 2: Convert to fraction form
2,156,512.91/3,234,215.79 = 639,837.05/x - Step 3: Cross multiply
2,156,512.91x = 3,234,215.79 × 639,837.05 - Step 4: Simplify right side
2,156,512.91x = 2,069,371,073,965.94 - Step 5: Solve for x
x = 2,069,371,073,965.94/2,156,512.91 - Step 6: Final answer
x = 959,591.32
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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.