Home / 685,807.41-1,029,375.42-331,070.54

Finding the Fourth Proportional to 685,807.41, 1,029,375.42 and 331,070.54

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Solution

The fourth proportional to 685,807.41, 1,029,375.42 and 331,070.54 is: 496,926.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,807.41 : 1,029,375.42 = 331,070.54 : x
  2. Step 2: Convert to fraction form
    685,807.41/1,029,375.42 = 331,070.54/x
  3. Step 3: Cross multiply
    685,807.41x = 1,029,375.42 × 331,070.54
  4. Step 4: Simplify right side
    685,807.41x = 340,795,869,359.90
  5. Step 5: Solve for x
    x = 340,795,869,359.90/685,807.41
  6. Step 6: Final answer
    x = 496,926.49

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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.