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Finding the Fourth Proportional to 1,992,000, 2,988,025.92 and 662,304

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Solution

The fourth proportional to 1,992,000, 2,988,025.92 and 662,304 is: 993,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,000 : 2,988,025.92 = 662,304 : x
  2. Step 2: Convert to fraction form
    1,992,000/2,988,025.92 = 662,304/x
  3. Step 3: Cross multiply
    1,992,000x = 2,988,025.92 × 662,304
  4. Step 4: Simplify right side
    1,992,000x = 1,978,981,518,919.68
  5. Step 5: Solve for x
    x = 1,978,981,518,919.68/1,992,000
  6. Step 6: Final answer
    x = 993,464.62

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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.