Home / 1,981,874.20-2,972,811.30-561,976.60

Finding the Fourth Proportional to 1,981,874.20, 2,972,811.30 and 561,976.60

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Solution

The fourth proportional to 1,981,874.20, 2,972,811.30 and 561,976.60 is: 842,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,874.20 : 2,972,811.30 = 561,976.60 : x
  2. Step 2: Convert to fraction form
    1,981,874.20/2,972,811.30 = 561,976.60/x
  3. Step 3: Cross multiply
    1,981,874.20x = 2,972,811.30 × 561,976.60
  4. Step 4: Simplify right side
    1,981,874.20x = 1,670,650,386,815.58
  5. Step 5: Solve for x
    x = 1,670,650,386,815.58/1,981,874.20
  6. Step 6: Final answer
    x = 842,964.90

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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.