Home / 681,155.92-1,021,857.76-281,579.68

Finding the Fourth Proportional to 681,155.92, 1,021,857.76 and 281,579.68

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Solution

The fourth proportional to 681,155.92, 1,021,857.76 and 281,579.68 is: 422,420.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,155.92 : 1,021,857.76 = 281,579.68 : x
  2. Step 2: Convert to fraction form
    681,155.92/1,021,857.76 = 281,579.68/x
  3. Step 3: Cross multiply
    681,155.92x = 1,021,857.76 × 281,579.68
  4. Step 4: Simplify right side
    681,155.92x = 287,734,381,066.32
  5. Step 5: Solve for x
    x = 287,734,381,066.32/681,155.92
  6. Step 6: Final answer
    x = 422,420.73

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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.