Finding the Fourth Proportional to 2,846,397.11, 3,928,121.12 and 1,557,207.59
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Solution
The fourth proportional to 2,846,397.11, 3,928,121.12 and 1,557,207.59 is: 2,148,997.41
Step by Step Solution
- Step 1: Write the proportion equation
2,846,397.11 : 3,928,121.12 = 1,557,207.59 : x - Step 2: Convert to fraction form
2,846,397.11/3,928,121.12 = 1,557,207.59/x - Step 3: Cross multiply
2,846,397.11x = 3,928,121.12 × 1,557,207.59 - Step 4: Simplify right side
2,846,397.11x = 6,116,900,006,755.71 - Step 5: Solve for x
x = 6,116,900,006,755.71/2,846,397.11 - Step 6: Final answer
x = 2,148,997.41
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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.