Home / 685,510.20-945,992.46-379,579.98

Finding the Fourth Proportional to 685,510.20, 945,992.46 and 379,579.98

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Solution

The fourth proportional to 685,510.20, 945,992.46 and 379,579.98 is: 523,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,510.20 : 945,992.46 = 379,579.98 : x
  2. Step 2: Convert to fraction form
    685,510.20/945,992.46 = 379,579.98/x
  3. Step 3: Cross multiply
    685,510.20x = 945,992.46 × 379,579.98
  4. Step 4: Simplify right side
    685,510.20x = 359,079,799,046.95
  5. Step 5: Solve for x
    x = 359,079,799,046.95/685,510.20
  6. Step 6: Final answer
    x = 523,813.94

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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.