Home / 685,532.16-946,033.79-379,608.53

Finding the Fourth Proportional to 685,532.16, 946,033.79 and 379,608.53

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Solution

The fourth proportional to 685,532.16, 946,033.79 and 379,608.53 is: 523,859.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,532.16 : 946,033.79 = 379,608.53 : x
  2. Step 2: Convert to fraction form
    685,532.16/946,033.79 = 379,608.53/x
  3. Step 3: Cross multiply
    685,532.16x = 946,033.79 × 379,608.53
  4. Step 4: Simplify right side
    685,532.16x = 359,122,489,724.02
  5. Step 5: Solve for x
    x = 359,122,489,724.02/685,532.16
  6. Step 6: Final answer
    x = 523,859.43

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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.