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Finding the Fourth Proportional to 553,812.56, 764,516.46 and 324,337.94

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Solution

The fourth proportional to 553,812.56, 764,516.46 and 324,337.94 is: 447,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,812.56 : 764,516.46 = 324,337.94 : x
  2. Step 2: Convert to fraction form
    553,812.56/764,516.46 = 324,337.94/x
  3. Step 3: Cross multiply
    553,812.56x = 764,516.46 × 324,337.94
  4. Step 4: Simplify right side
    553,812.56x = 247,961,688,288.22
  5. Step 5: Solve for x
    x = 247,961,688,288.22/553,812.56
  6. Step 6: Final answer
    x = 447,735.77

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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.