Home / 685,338.30-1,028,007.45-444,800.70

Finding the Fourth Proportional to 685,338.30, 1,028,007.45 and 444,800.70

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Solution

The fourth proportional to 685,338.30, 1,028,007.45 and 444,800.70 is: 667,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,338.30 : 1,028,007.45 = 444,800.70 : x
  2. Step 2: Convert to fraction form
    685,338.30/1,028,007.45 = 444,800.70/x
  3. Step 3: Cross multiply
    685,338.30x = 1,028,007.45 × 444,800.70
  4. Step 4: Simplify right side
    685,338.30x = 457,258,433,365.22
  5. Step 5: Solve for x
    x = 457,258,433,365.22/685,338.30
  6. Step 6: Final answer
    x = 667,201.05

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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.