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Finding the Fourth Proportional to 590,722.80, 815,198.60 and 322,450.80

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Solution

The fourth proportional to 590,722.80, 815,198.60 and 322,450.80 is: 444,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,722.80 : 815,198.60 = 322,450.80 : x
  2. Step 2: Convert to fraction form
    590,722.80/815,198.60 = 322,450.80/x
  3. Step 3: Cross multiply
    590,722.80x = 815,198.60 × 322,450.80
  4. Step 4: Simplify right side
    590,722.80x = 262,861,440,728.88
  5. Step 5: Solve for x
    x = 262,861,440,728.88/590,722.80
  6. Step 6: Final answer
    x = 444,982.72

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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.