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Finding the Fourth Proportional to 463,774.80, 695,662.20 and 285,704.40

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Solution

The fourth proportional to 463,774.80, 695,662.20 and 285,704.40 is: 428,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,774.80 : 695,662.20 = 285,704.40 : x
  2. Step 2: Convert to fraction form
    463,774.80/695,662.20 = 285,704.40/x
  3. Step 3: Cross multiply
    463,774.80x = 695,662.20 × 285,704.40
  4. Step 4: Simplify right side
    463,774.80x = 198,753,751,453.68
  5. Step 5: Solve for x
    x = 198,753,751,453.68/463,774.80
  6. Step 6: Final answer
    x = 428,556.60

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Similar ratio
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1.5x scale

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.