Home / 639,839.88-958,996.44-297,823.32

Finding the Fourth Proportional to 639,839.88, 958,996.44 and 297,823.32

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Solution

The fourth proportional to 639,839.88, 958,996.44 and 297,823.32 is: 446,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,839.88 : 958,996.44 = 297,823.32 : x
  2. Step 2: Convert to fraction form
    639,839.88/958,996.44 = 297,823.32/x
  3. Step 3: Cross multiply
    639,839.88x = 958,996.44 × 297,823.32
  4. Step 4: Simplify right side
    639,839.88x = 285,611,503,628.98
  5. Step 5: Solve for x
    x = 285,611,503,628.98/639,839.88
  6. Step 6: Final answer
    x = 446,379.65

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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.