Home / 1,263,774.85-1,895,662.28-422,326.60

Finding the Fourth Proportional to 1,263,774.85, 1,895,662.28 and 422,326.60

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Solution

The fourth proportional to 1,263,774.85, 1,895,662.28 and 422,326.60 is: 633,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,774.85 : 1,895,662.28 = 422,326.60 : x
  2. Step 2: Convert to fraction form
    1,263,774.85/1,895,662.28 = 422,326.60/x
  3. Step 3: Cross multiply
    1,263,774.85x = 1,895,662.28 × 422,326.60
  4. Step 4: Simplify right side
    1,263,774.85x = 800,588,598,609.86
  5. Step 5: Solve for x
    x = 800,588,598,609.86/1,263,774.85
  6. Step 6: Final answer
    x = 633,489.90

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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.