Finding the Fourth Proportional to 3,896,308.74, 5,376,890.34 and 2,177,428.80
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Solution
The fourth proportional to 3,896,308.74, 5,376,890.34 and 2,177,428.80 is: 3,004,842.96
Step by Step Solution
- Step 1: Write the proportion equation
3,896,308.74 : 5,376,890.34 = 2,177,428.80 : x - Step 2: Convert to fraction form
3,896,308.74/5,376,890.34 = 2,177,428.80/x - Step 3: Cross multiply
3,896,308.74x = 5,376,890.34 × 2,177,428.80 - Step 4: Simplify right side
3,896,308.74x = 11,707,795,880,757.79 - Step 5: Solve for x
x = 11,707,795,880,757.79/3,896,308.74 - Step 6: Final answer
x = 3,004,842.96
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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.