Home / 887,171.20-1,330,929.60-256,105.60

Finding the Fourth Proportional to 887,171.20, 1,330,929.60 and 256,105.60

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Solution

The fourth proportional to 887,171.20, 1,330,929.60 and 256,105.60 is: 384,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,171.20 : 1,330,929.60 = 256,105.60 : x
  2. Step 2: Convert to fraction form
    887,171.20/1,330,929.60 = 256,105.60/x
  3. Step 3: Cross multiply
    887,171.20x = 1,330,929.60 × 256,105.60
  4. Step 4: Simplify right side
    887,171.20x = 340,858,523,765.76
  5. Step 5: Solve for x
    x = 340,858,523,765.76/887,171.20
  6. Step 6: Final answer
    x = 384,208.28

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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.