Home / 639,961.41-960,466.82-324,508.53

Finding the Fourth Proportional to 639,961.41, 960,466.82 and 324,508.53

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Solution

The fourth proportional to 639,961.41, 960,466.82 and 324,508.53 is: 487,028.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,961.41 : 960,466.82 = 324,508.53 : x
  2. Step 2: Convert to fraction form
    639,961.41/960,466.82 = 324,508.53/x
  3. Step 3: Cross multiply
    639,961.41x = 960,466.82 × 324,508.53
  4. Step 4: Simplify right side
    639,961.41x = 311,679,674,249.43
  5. Step 5: Solve for x
    x = 311,679,674,249.43/639,961.41
  6. Step 6: Final answer
    x = 487,028.86

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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.