Home / 2,642,175.90-3,963,911.85-1,221,932.70

Finding the Fourth Proportional to 2,642,175.90, 3,963,911.85 and 1,221,932.70

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Solution

The fourth proportional to 2,642,175.90, 3,963,911.85 and 1,221,932.70 is: 1,833,198.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,175.90 : 3,963,911.85 = 1,221,932.70 : x
  2. Step 2: Convert to fraction form
    2,642,175.90/3,963,911.85 = 1,221,932.70/x
  3. Step 3: Cross multiply
    2,642,175.90x = 3,963,911.85 × 1,221,932.70
  4. Step 4: Simplify right side
    2,642,175.90x = 4,843,633,509,432.50
  5. Step 5: Solve for x
    x = 4,843,633,509,432.50/2,642,175.90
  6. Step 6: Final answer
    x = 1,833,198.73

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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.