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Finding the Fourth Proportional to 440,569, 608,037.06 and 261,721

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Solution

The fourth proportional to 440,569, 608,037.06 and 261,721 is: 361,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,569 : 608,037.06 = 261,721 : x
  2. Step 2: Convert to fraction form
    440,569/608,037.06 = 261,721/x
  3. Step 3: Cross multiply
    440,569x = 608,037.06 × 261,721
  4. Step 4: Simplify right side
    440,569x = 159,136,067,380.26
  5. Step 5: Solve for x
    x = 159,136,067,380.26/440,569
  6. Step 6: Final answer
    x = 361,205.78

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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.