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Finding the Fourth Proportional to 404,485.65, 606,728.48 and 379,553.85

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Solution

The fourth proportional to 404,485.65, 606,728.48 and 379,553.85 is: 569,330.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,485.65 : 606,728.48 = 379,553.85 : x
  2. Step 2: Convert to fraction form
    404,485.65/606,728.48 = 379,553.85/x
  3. Step 3: Cross multiply
    404,485.65x = 606,728.48 × 379,553.85
  4. Step 4: Simplify right side
    404,485.65x = 230,286,128,590.88
  5. Step 5: Solve for x
    x = 230,286,128,590.88/404,485.65
  6. Step 6: Final answer
    x = 569,330.78

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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.