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Finding the Fourth Proportional to 404,487.66, 606,731.48 and 379,555.86

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Solution

The fourth proportional to 404,487.66, 606,731.48 and 379,555.86 is: 569,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,487.66 : 606,731.48 = 379,555.86 : x
  2. Step 2: Convert to fraction form
    404,487.66/606,731.48 = 379,555.86/x
  3. Step 3: Cross multiply
    404,487.66x = 606,731.48 × 379,555.86
  4. Step 4: Simplify right side
    404,487.66x = 230,288,488,680.47
  5. Step 5: Solve for x
    x = 230,288,488,680.47/404,487.66
  6. Step 6: Final answer
    x = 569,333.78

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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.