Home / 1,383,934.82-1,908,133.24-1,138,060.34

Finding the Fourth Proportional to 1,383,934.82, 1,908,133.24 and 1,138,060.34

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Solution

The fourth proportional to 1,383,934.82, 1,908,133.24 and 1,138,060.34 is: 1,569,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,934.82 : 1,908,133.24 = 1,138,060.34 : x
  2. Step 2: Convert to fraction form
    1,383,934.82/1,908,133.24 = 1,138,060.34/x
  3. Step 3: Cross multiply
    1,383,934.82x = 1,908,133.24 × 1,138,060.34
  4. Step 4: Simplify right side
    1,383,934.82x = 2,171,570,763,879.70
  5. Step 5: Solve for x
    x = 2,171,570,763,879.70/1,383,934.82
  6. Step 6: Final answer
    x = 1,569,127.92

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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.