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Finding the Fourth Proportional to 553,769.57, 764,202.02 and 299,120.76

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Solution

The fourth proportional to 553,769.57, 764,202.02 and 299,120.76 is: 412,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,769.57 : 764,202.02 = 299,120.76 : x
  2. Step 2: Convert to fraction form
    553,769.57/764,202.02 = 299,120.76/x
  3. Step 3: Cross multiply
    553,769.57x = 764,202.02 × 299,120.76
  4. Step 4: Simplify right side
    553,769.57x = 228,588,687,520.33
  5. Step 5: Solve for x
    x = 228,588,687,520.33/553,769.57
  6. Step 6: Final answer
    x = 412,786.66

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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.