Home / 764,586.46-1,147,378.65-285,197.77

Finding the Fourth Proportional to 764,586.46, 1,147,378.65 and 285,197.77

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Solution

The fourth proportional to 764,586.46, 1,147,378.65 and 285,197.77 is: 427,982.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,586.46 : 1,147,378.65 = 285,197.77 : x
  2. Step 2: Convert to fraction form
    764,586.46/1,147,378.65 = 285,197.77/x
  3. Step 3: Cross multiply
    764,586.46x = 1,147,378.65 × 285,197.77
  4. Step 4: Simplify right side
    764,586.46x = 327,229,832,325.61
  5. Step 5: Solve for x
    x = 327,229,832,325.61/764,586.46
  6. Step 6: Final answer
    x = 427,982.77

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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.