Home / 892,581.21-1,338,868.89-323,961.55

Finding the Fourth Proportional to 892,581.21, 1,338,868.89 and 323,961.55

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Solution

The fourth proportional to 892,581.21, 1,338,868.89 and 323,961.55 is: 485,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,581.21 : 1,338,868.89 = 323,961.55 : x
  2. Step 2: Convert to fraction form
    892,581.21/1,338,868.89 = 323,961.55/x
  3. Step 3: Cross multiply
    892,581.21x = 1,338,868.89 × 323,961.55
  4. Step 4: Simplify right side
    892,581.21x = 433,742,037,504.01
  5. Step 5: Solve for x
    x = 433,742,037,504.01/892,581.21
  6. Step 6: Final answer
    x = 485,941.26

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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.