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Finding the Fourth Proportional to 450,644.52, 621,226.89 and 343,027.11

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Solution

The fourth proportional to 450,644.52, 621,226.89 and 343,027.11 is: 472,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,644.52 : 621,226.89 = 343,027.11 : x
  2. Step 2: Convert to fraction form
    450,644.52/621,226.89 = 343,027.11/x
  3. Step 3: Cross multiply
    450,644.52x = 621,226.89 × 343,027.11
  4. Step 4: Simplify right side
    450,644.52x = 213,097,664,730.99
  5. Step 5: Solve for x
    x = 213,097,664,730.99/450,644.52
  6. Step 6: Final answer
    x = 472,873.09

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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.