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Finding the Fourth Proportional to 454,995.36, 682,489.67 and 355,239

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Solution

The fourth proportional to 454,995.36, 682,489.67 and 355,239 is: 532,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,995.36 : 682,489.67 = 355,239 : x
  2. Step 2: Convert to fraction form
    454,995.36/682,489.67 = 355,239/x
  3. Step 3: Cross multiply
    454,995.36x = 682,489.67 × 355,239
  4. Step 4: Simplify right side
    454,995.36x = 242,446,946,104.94
  5. Step 5: Solve for x
    x = 242,446,946,104.94/454,995.36
  6. Step 6: Final answer
    x = 532,855.86

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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.