Finding the Fourth Proportional to 3,440,670.97, 4,747,856.99 and 1,912,685.05
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Solution
The fourth proportional to 3,440,670.97, 4,747,856.99 and 1,912,685.05 is: 2,639,355.86
Step by Step Solution
- Step 1: Write the proportion equation
3,440,670.97 : 4,747,856.99 = 1,912,685.05 : x - Step 2: Convert to fraction form
3,440,670.97/4,747,856.99 = 1,912,685.05/x - Step 3: Cross multiply
3,440,670.97x = 4,747,856.99 × 1,912,685.05 - Step 4: Simplify right side
3,440,670.97x = 9,081,155,074,747.57 - Step 5: Solve for x
x = 9,081,155,074,747.57/3,440,670.97 - Step 6: Final answer
x = 2,639,355.86
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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.