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Finding the Fourth Proportional to 481,262.20, 721,644.12 and 256,562.30

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Solution

The fourth proportional to 481,262.20, 721,644.12 and 256,562.30 is: 384,710.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,262.20 : 721,644.12 = 256,562.30 : x
  2. Step 2: Convert to fraction form
    481,262.20/721,644.12 = 256,562.30/x
  3. Step 3: Cross multiply
    481,262.20x = 721,644.12 × 256,562.30
  4. Step 4: Simplify right side
    481,262.20x = 185,146,675,208.68
  5. Step 5: Solve for x
    x = 185,146,675,208.68/481,262.20
  6. Step 6: Final answer
    x = 384,710.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.