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Finding the Fourth Proportional to 553,797.92, 764,310.65 and 324,442.71

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Solution

The fourth proportional to 553,797.92, 764,310.65 and 324,442.71 is: 447,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,797.92 : 764,310.65 = 324,442.71 : x
  2. Step 2: Convert to fraction form
    553,797.92/764,310.65 = 324,442.71/x
  3. Step 3: Cross multiply
    553,797.92x = 764,310.65 × 324,442.71
  4. Step 4: Simplify right side
    553,797.92x = 247,975,014,746.31
  5. Step 5: Solve for x
    x = 247,975,014,746.31/553,797.92
  6. Step 6: Final answer
    x = 447,771.67

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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.