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Finding the Fourth Proportional to 484,455.31, 667,855.40 and 340,769.41

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Solution

The fourth proportional to 484,455.31, 667,855.40 and 340,769.41 is: 469,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,455.31 : 667,855.40 = 340,769.41 : x
  2. Step 2: Convert to fraction form
    484,455.31/667,855.40 = 340,769.41/x
  3. Step 3: Cross multiply
    484,455.31x = 667,855.40 × 340,769.41
  4. Step 4: Simplify right side
    484,455.31x = 227,584,687,249.83
  5. Step 5: Solve for x
    x = 227,584,687,249.83/484,455.31
  6. Step 6: Final answer
    x = 469,774.37

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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.