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Finding the Fourth Proportional to 632,404.89, 872,719.09 and 345,924.29

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Solution

The fourth proportional to 632,404.89, 872,719.09 and 345,924.29 is: 477,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,404.89 : 872,719.09 = 345,924.29 : x
  2. Step 2: Convert to fraction form
    632,404.89/872,719.09 = 345,924.29/x
  3. Step 3: Cross multiply
    632,404.89x = 872,719.09 × 345,924.29
  4. Step 4: Simplify right side
    632,404.89x = 301,894,732,894.68
  5. Step 5: Solve for x
    x = 301,894,732,894.68/632,404.89
  6. Step 6: Final answer
    x = 477,375.71

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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.