Home / 654,719.21-982,120.32-205,457.81

Finding the Fourth Proportional to 654,719.21, 982,120.32 and 205,457.81

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Solution

The fourth proportional to 654,719.21, 982,120.32 and 205,457.81 is: 308,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,719.21 : 982,120.32 = 205,457.81 : x
  2. Step 2: Convert to fraction form
    654,719.21/982,120.32 = 205,457.81/x
  3. Step 3: Cross multiply
    654,719.21x = 982,120.32 × 205,457.81
  4. Step 4: Simplify right side
    654,719.21x = 201,784,285,193.10
  5. Step 5: Solve for x
    x = 201,784,285,193.10/654,719.21
  6. Step 6: Final answer
    x = 308,199.73

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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.