Home / 639,422.22-882,402.75-352,942.41

Finding the Fourth Proportional to 639,422.22, 882,402.75 and 352,942.41

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Solution

The fourth proportional to 639,422.22, 882,402.75 and 352,942.41 is: 487,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,422.22 : 882,402.75 = 352,942.41 : x
  2. Step 2: Convert to fraction form
    639,422.22/882,402.75 = 352,942.41/x
  3. Step 3: Cross multiply
    639,422.22x = 882,402.75 × 352,942.41
  4. Step 4: Simplify right side
    639,422.22x = 311,437,353,175.63
  5. Step 5: Solve for x
    x = 311,437,353,175.63/639,422.22
  6. Step 6: Final answer
    x = 487,060.57

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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.