Home / 681,765.54-1,022,648.28-208,450.86

Finding the Fourth Proportional to 681,765.54, 1,022,648.28 and 208,450.86

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Solution

The fourth proportional to 681,765.54, 1,022,648.28 and 208,450.86 is: 312,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,765.54 : 1,022,648.28 = 208,450.86 : x
  2. Step 2: Convert to fraction form
    681,765.54/1,022,648.28 = 208,450.86/x
  3. Step 3: Cross multiply
    681,765.54x = 1,022,648.28 × 208,450.86
  4. Step 4: Simplify right side
    681,765.54x = 213,171,913,443.52
  5. Step 5: Solve for x
    x = 213,171,913,443.52/681,765.54
  6. Step 6: Final answer
    x = 312,676.28

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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.