Home / 645,137.04-967,999.32-329,431.44

Finding the Fourth Proportional to 645,137.04, 967,999.32 and 329,431.44

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Solution

The fourth proportional to 645,137.04, 967,999.32 and 329,431.44 is: 494,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,137.04 : 967,999.32 = 329,431.44 : x
  2. Step 2: Convert to fraction form
    645,137.04/967,999.32 = 329,431.44/x
  3. Step 3: Cross multiply
    645,137.04x = 967,999.32 × 329,431.44
  4. Step 4: Simplify right side
    645,137.04x = 318,889,409,906.62
  5. Step 5: Solve for x
    x = 318,889,409,906.62/645,137.04
  6. Step 6: Final answer
    x = 494,297.16

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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.