Home / 470,530.38-649,258.83-279,538.86

Finding the Fourth Proportional to 470,530.38, 649,258.83 and 279,538.86

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Solution

The fourth proportional to 470,530.38, 649,258.83 and 279,538.86 is: 385,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,530.38 : 649,258.83 = 279,538.86 : x
  2. Step 2: Convert to fraction form
    470,530.38/649,258.83 = 279,538.86/x
  3. Step 3: Cross multiply
    470,530.38x = 649,258.83 × 279,538.86
  4. Step 4: Simplify right side
    470,530.38x = 181,493,073,183.13
  5. Step 5: Solve for x
    x = 181,493,073,183.13/470,530.38
  6. Step 6: Final answer
    x = 385,720.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.