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Finding the Fourth Proportional to 404,504.70, 606,757.05 and 402,171.90

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Solution

The fourth proportional to 404,504.70, 606,757.05 and 402,171.90 is: 603,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,504.70 : 606,757.05 = 402,171.90 : x
  2. Step 2: Convert to fraction form
    404,504.70/606,757.05 = 402,171.90/x
  3. Step 3: Cross multiply
    404,504.70x = 606,757.05 × 402,171.90
  4. Step 4: Simplify right side
    404,504.70x = 244,020,635,636.90
  5. Step 5: Solve for x
    x = 244,020,635,636.90/404,504.70
  6. Step 6: Final answer
    x = 603,257.85

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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.