Home / 1,121,446.45-1,682,005.65-322,644.70

Finding the Fourth Proportional to 1,121,446.45, 1,682,005.65 and 322,644.70

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Solution

The fourth proportional to 1,121,446.45, 1,682,005.65 and 322,644.70 is: 483,919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,446.45 : 1,682,005.65 = 322,644.70 : x
  2. Step 2: Convert to fraction form
    1,121,446.45/1,682,005.65 = 322,644.70/x
  3. Step 3: Cross multiply
    1,121,446.45x = 1,682,005.65 × 322,644.70
  4. Step 4: Simplify right side
    1,121,446.45x = 542,690,208,342.56
  5. Step 5: Solve for x
    x = 542,690,208,342.56/1,121,446.45
  6. Step 6: Final answer
    x = 483,919.86

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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.