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Finding the Fourth Proportional to 409,472.28, 611,005.34 and 366,918.73

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Solution

The fourth proportional to 409,472.28, 611,005.34 and 366,918.73 is: 547,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,472.28 : 611,005.34 = 366,918.73 : x
  2. Step 2: Convert to fraction form
    409,472.28/611,005.34 = 366,918.73/x
  3. Step 3: Cross multiply
    409,472.28x = 611,005.34 × 366,918.73
  4. Step 4: Simplify right side
    409,472.28x = 224,189,302,765.80
  5. Step 5: Solve for x
    x = 224,189,302,765.80/409,472.28
  6. Step 6: Final answer
    x = 547,507.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.