Home / 947,961.20-1,422,136.20-317,327.60

Finding the Fourth Proportional to 947,961.20, 1,422,136.20 and 317,327.60

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Solution

The fourth proportional to 947,961.20, 1,422,136.20 and 317,327.60 is: 476,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,961.20 : 1,422,136.20 = 317,327.60 : x
  2. Step 2: Convert to fraction form
    947,961.20/1,422,136.20 = 317,327.60/x
  3. Step 3: Cross multiply
    947,961.20x = 1,422,136.20 × 317,327.60
  4. Step 4: Simplify right side
    947,961.20x = 451,283,067,219.12
  5. Step 5: Solve for x
    x = 451,283,067,219.12/947,961.20
  6. Step 6: Final answer
    x = 476,056.47

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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.