Home / 685,859.00-1,028,821.30-331,171.34

Finding the Fourth Proportional to 685,859.00, 1,028,821.30 and 331,171.34

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Solution

The fourth proportional to 685,859.00, 1,028,821.30 and 331,171.34 is: 496,772.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,859.00 : 1,028,821.30 = 331,171.34 : x
  2. Step 2: Convert to fraction form
    685,859.00/1,028,821.30 = 331,171.34/x
  3. Step 3: Cross multiply
    685,859.00x = 1,028,821.30 × 331,171.34
  4. Step 4: Simplify right side
    685,859.00x = 340,716,122,569.51
  5. Step 5: Solve for x
    x = 340,716,122,569.51/685,859.00
  6. Step 6: Final answer
    x = 496,772.84

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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.