Home / 513,450.82-769,000.92-313,330.60

Finding the Fourth Proportional to 513,450.82, 769,000.92 and 313,330.60

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Solution

The fourth proportional to 513,450.82, 769,000.92 and 313,330.60 is: 469,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,450.82 : 769,000.92 = 313,330.60 : x
  2. Step 2: Convert to fraction form
    513,450.82/769,000.92 = 313,330.60/x
  3. Step 3: Cross multiply
    513,450.82x = 769,000.92 × 313,330.60
  4. Step 4: Simplify right side
    513,450.82x = 240,951,519,664.15
  5. Step 5: Solve for x
    x = 240,951,519,664.15/513,450.82
  6. Step 6: Final answer
    x = 469,278.67

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1.5x scale

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.