Home / 639,684.06-882,815.94-367,840.32

Finding the Fourth Proportional to 639,684.06, 882,815.94 and 367,840.32

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Solution

The fourth proportional to 639,684.06, 882,815.94 and 367,840.32 is: 507,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,684.06 : 882,815.94 = 367,840.32 : x
  2. Step 2: Convert to fraction form
    639,684.06/882,815.94 = 367,840.32/x
  3. Step 3: Cross multiply
    639,684.06x = 882,815.94 × 367,840.32
  4. Step 4: Simplify right side
    639,684.06x = 324,735,297,870.70
  5. Step 5: Solve for x
    x = 324,735,297,870.70/639,684.06
  6. Step 6: Final answer
    x = 507,649.51

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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.