Finding the Fourth Proportional to 3,421,846.08, 4,721,618.88 and 1,971,257.28
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Solution
The fourth proportional to 3,421,846.08, 4,721,618.88 and 1,971,257.28 is: 2,720,030.47
Step by Step Solution
- Step 1: Write the proportion equation
3,421,846.08 : 4,721,618.88 = 1,971,257.28 : x - Step 2: Convert to fraction form
3,421,846.08/4,721,618.88 = 1,971,257.28/x - Step 3: Cross multiply
3,421,846.08x = 4,721,618.88 × 1,971,257.28 - Step 4: Simplify right side
3,421,846.08x = 9,307,525,590,585.45 - Step 5: Solve for x
x = 9,307,525,590,585.45/3,421,846.08 - Step 6: Final answer
x = 2,720,030.47
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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.