Home / 639,434.22-882,419.31-352,954.38

Finding the Fourth Proportional to 639,434.22, 882,419.31 and 352,954.38

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Solution

The fourth proportional to 639,434.22, 882,419.31 and 352,954.38 is: 487,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,434.22 : 882,419.31 = 352,954.38 : x
  2. Step 2: Convert to fraction form
    639,434.22/882,419.31 = 352,954.38/x
  3. Step 3: Cross multiply
    639,434.22x = 882,419.31 × 352,954.38
  4. Step 4: Simplify right side
    639,434.22x = 311,453,760,461.08
  5. Step 5: Solve for x
    x = 311,453,760,461.08/639,434.22
  6. Step 6: Final answer
    x = 487,077.09

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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.