Home / 639,343.22-882,289.29-352,863.31

Finding the Fourth Proportional to 639,343.22, 882,289.29 and 352,863.31

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Solution

The fourth proportional to 639,343.22, 882,289.29 and 352,863.31 is: 486,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,343.22 : 882,289.29 = 352,863.31 : x
  2. Step 2: Convert to fraction form
    639,343.22/882,289.29 = 352,863.31/x
  3. Step 3: Cross multiply
    639,343.22x = 882,289.29 × 352,863.31
  4. Step 4: Simplify right side
    639,343.22x = 311,327,519,246.95
  5. Step 5: Solve for x
    x = 311,327,519,246.95/639,343.22
  6. Step 6: Final answer
    x = 486,948.96

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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.