Finding the Fourth Proportional to 3,418,904.76, 4,718,323.90 and 1,968,982.08
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Solution
The fourth proportional to 3,418,904.76, 4,718,323.90 and 1,968,982.08 is: 2,717,330.80
Step by Step Solution
- Step 1: Write the proportion equation
3,418,904.76 : 4,718,323.90 = 1,968,982.08 : x - Step 2: Convert to fraction form
3,418,904.76/4,718,323.90 = 1,968,982.08/x - Step 3: Cross multiply
3,418,904.76x = 4,718,323.90 × 1,968,982.08 - Step 4: Simplify right side
3,418,904.76x = 9,290,295,206,735.71 - Step 5: Solve for x
x = 9,290,295,206,735.71/3,418,904.76 - Step 6: Final answer
x = 2,717,330.80
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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.