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Finding the Fourth Proportional to 999,525, 1,499,286.31 and 325,605.21

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Solution

The fourth proportional to 999,525, 1,499,286.31 and 325,605.21 is: 488,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,525 : 1,499,286.31 = 325,605.21 : x
  2. Step 2: Convert to fraction form
    999,525/1,499,286.31 = 325,605.21/x
  3. Step 3: Cross multiply
    999,525x = 1,499,286.31 × 325,605.21
  4. Step 4: Simplify right side
    999,525x = 488,175,433,817.68
  5. Step 5: Solve for x
    x = 488,175,433,817.68/999,525
  6. Step 6: Final answer
    x = 488,407.43

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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.