Home / 4,620,105.72-6,929,629.20-1,208,721.65

Finding the Fourth Proportional to 4,620,105.72, 6,929,629.20 and 1,208,721.65

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Solution

The fourth proportional to 4,620,105.72, 6,929,629.20 and 1,208,721.65 is: 1,812,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620,105.72 : 6,929,629.20 = 1,208,721.65 : x
  2. Step 2: Convert to fraction form
    4,620,105.72/6,929,629.20 = 1,208,721.65/x
  3. Step 3: Cross multiply
    4,620,105.72x = 6,929,629.20 × 1,208,721.65
  4. Step 4: Simplify right side
    4,620,105.72x = 8,375,992,805,864.03
  5. Step 5: Solve for x
    x = 8,375,992,805,864.03/4,620,105.72
  6. Step 6: Final answer
    x = 1,812,943.97

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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.