Home / 653,147.76-979,758.16-203,930.68

Finding the Fourth Proportional to 653,147.76, 979,758.16 and 203,930.68

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Solution

The fourth proportional to 653,147.76, 979,758.16 and 203,930.68 is: 305,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,147.76 : 979,758.16 = 203,930.68 : x
  2. Step 2: Convert to fraction form
    653,147.76/979,758.16 = 203,930.68/x
  3. Step 3: Cross multiply
    653,147.76x = 979,758.16 × 203,930.68
  4. Step 4: Simplify right side
    653,147.76x = 199,802,747,804.35
  5. Step 5: Solve for x
    x = 199,802,747,804.35/653,147.76
  6. Step 6: Final answer
    x = 305,907.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.