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Finding the Fourth Proportional to 488,358.75, 735,865.85 and 401,556.75

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Solution

The fourth proportional to 488,358.75, 735,865.85 and 401,556.75 is: 605,071.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,358.75 : 735,865.85 = 401,556.75 : x
  2. Step 2: Convert to fraction form
    488,358.75/735,865.85 = 401,556.75/x
  3. Step 3: Cross multiply
    488,358.75x = 735,865.85 × 401,556.75
  4. Step 4: Simplify right side
    488,358.75x = 295,491,900,165.88
  5. Step 5: Solve for x
    x = 295,491,900,165.88/488,358.75
  6. Step 6: Final answer
    x = 605,071.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.