Home / 470,719.32-649,905.48-361,629.38

Finding the Fourth Proportional to 470,719.32, 649,905.48 and 361,629.38

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Solution

The fourth proportional to 470,719.32, 649,905.48 and 361,629.38 is: 499,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,719.32 : 649,905.48 = 361,629.38 : x
  2. Step 2: Convert to fraction form
    470,719.32/649,905.48 = 361,629.38/x
  3. Step 3: Cross multiply
    470,719.32x = 649,905.48 × 361,629.38
  4. Step 4: Simplify right side
    470,719.32x = 235,024,915,791.00
  5. Step 5: Solve for x
    x = 235,024,915,791.00/470,719.32
  6. Step 6: Final answer
    x = 499,288.87

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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.