Finding the Fourth Proportional to 2,279,072.91, 3,146,089.08 and 1,420,057.65
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Solution
The fourth proportional to 2,279,072.91, 3,146,089.08 and 1,420,057.65 is: 1,960,282.99
Step by Step Solution
- Step 1: Write the proportion equation
2,279,072.91 : 3,146,089.08 = 1,420,057.65 : x - Step 2: Convert to fraction form
2,279,072.91/3,146,089.08 = 1,420,057.65/x - Step 3: Cross multiply
2,279,072.91x = 3,146,089.08 × 1,420,057.65 - Step 4: Simplify right side
2,279,072.91x = 4,467,627,865,635.46 - Step 5: Solve for x
x = 4,467,627,865,635.46/2,279,072.91 - Step 6: Final answer
x = 1,960,282.99
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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.