Finding the Fourth Proportional to 3,328,121.12, 4,992,928.29 and 1,053,781.65
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Solution
The fourth proportional to 3,328,121.12, 4,992,928.29 and 1,053,781.65 is: 1,580,908.88
Step by Step Solution
- Step 1: Write the proportion equation
3,328,121.12 : 4,992,928.29 = 1,053,781.65 : x - Step 2: Convert to fraction form
3,328,121.12/4,992,928.29 = 1,053,781.65/x - Step 3: Cross multiply
3,328,121.12x = 4,992,928.29 × 1,053,781.65 - Step 4: Simplify right side
3,328,121.12x = 5,261,456,211,767.88 - Step 5: Solve for x
x = 5,261,456,211,767.88/3,328,121.12 - Step 6: Final answer
x = 1,580,908.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.