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Finding the Fourth Proportional to 625,493, 863,175.48 and 339,005.72

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Solution

The fourth proportional to 625,493, 863,175.48 and 339,005.72 is: 467,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,493 : 863,175.48 = 339,005.72 : x
  2. Step 2: Convert to fraction form
    625,493/863,175.48 = 339,005.72/x
  3. Step 3: Cross multiply
    625,493x = 863,175.48 × 339,005.72
  4. Step 4: Simplify right side
    625,493x = 292,621,425,083.75
  5. Step 5: Solve for x
    x = 292,621,425,083.75/625,493
  6. Step 6: Final answer
    x = 467,825.26

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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.