Home / 685,255.35-945,640.94-379,325.27

Finding the Fourth Proportional to 685,255.35, 945,640.94 and 379,325.27

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Solution

The fourth proportional to 685,255.35, 945,640.94 and 379,325.27 is: 523,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,255.35 : 945,640.94 = 379,325.27 : x
  2. Step 2: Convert to fraction form
    685,255.35/945,640.94 = 379,325.27/x
  3. Step 3: Cross multiply
    685,255.35x = 945,640.94 × 379,325.27
  4. Step 4: Simplify right side
    685,255.35x = 358,705,498,263.72
  5. Step 5: Solve for x
    x = 358,705,498,263.72/685,255.35
  6. Step 6: Final answer
    x = 523,462.53

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1.5x scale

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.